SEC Filings

Form	Description	Filer	Filing date
8-K	Report of unscheduled material events or corporate event		Feb 21, 2002
SC 13G/A	An amendment to the SC 13G filing	COOK BRIAN R	Feb 14, 2002
SC 13G	A statement of beneficial ownership of common stock by certain persons	AMERICAN CENTURY INVESTMENT MANAGEMENT INC	Feb 8, 2002
8-K/A	Amendment to a previously filed 8-K		Dec 3, 2001
10-Q	Quarterly report which provides a continuing view of a company's financial position		Nov 14, 2001
8-K	Report of unscheduled material events or corporate event		Oct 4, 2001
10-Q	Quarterly report which provides a continuing view of a company's financial position		Aug 14, 2001
SC 13G	A statement of beneficial ownership of common stock by certain persons	SPROTT SECURITIES INC	Jul 9, 2001
11-K	An annual report of employee stock purchase, savings and similar plans		Jun 28, 2001
10-Q	Quarterly report which provides a continuing view of a company's financial position		May 14, 2001