Microsoft has release Service Pack 2 (SP2) for SQL Server 7.0.

From the SQL Server site:

"SQL Server Service Pack 2 (SP2) addresses specific issues that were discovered in SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0 since their ship date. Because SQL Server Service Packs are cumulative, SP2 includes all fixes from Service Pack 1 (SP1) and can be applied to an original installation or to one where SP1 was previously applied. It is recommended that you include SP2 in all new SQL Server 7.0 and MSDE 1.0 installations."

You can get the service pack from Microsoft.

http://www.microsoft.com/sql/support/sp2.htm

-Mike