Common use of Signature Guarantee Clause in Contracts

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ], 2001 the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "“Securities Act") ”), covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]May 9, 2001 2005, the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:

Signature Guarantee. B-7 In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]_______________, 2001 the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: (Check One)

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "“Securities Act") ”), covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ , ], 2001 the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: [Check One]

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "“Securities Act"”) covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]July 10, 2001 1999 the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:: [Check One]

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]July 17, 2001 2000, the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: (Check One)

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]July 17, 2001 1999, the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: (Check One)

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]_____________ ___, 2001 1999, the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: [Check One]

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]ii)February 27, 2001 2000, the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: 127 [Check One]

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]ii)February 27, 2001 2000 the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: 141 [Check One]

Signature Guarantee. In connection with any transfer of this Note Warrant occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note Warrant (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]April 30, 2001 2000, the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfertransfer and that this Warrant is being transferred:

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]March 25, 2001 1999 the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:

Signature Guarantee. In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Commission SEC of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]________________, 2001 the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: (Check One)

Signature Guarantee. 114 In connection with any transfer of this Note occurring prior to the date which is the earlier of (i) the date of the declaration by the Securities and Exchange Commission of the effectiveness of a registration statement under the Securities Act of 1933, as amended (the "Securities Act") covering resales of this Note (which effectiveness shall not have been suspended or terminated at the date of the transfer) and (ii) [ ]April 22, 2001 2001, the undersigned confirms that it has not utilized any general solicitation or general advertising in connection with the transfer:transfer and that this Note is being transferred: --------------------------- (Check One)