I fixed your code tags (you didn't do them quite right, so the code came out as text). And I also removed your e-mail address from the post -- it's a really bad idea to post your e-mail address on a public forum. (Read our FAQ link UseTheForumNotEmail for more about that.)
I'm also moving the post to the JDBC forum: I don't see anything Struts-related in it.
And the first thing the people in the JDBC forum are going to say is "Show us the stack trace of the exception that's thrown". So you might want to start by posting that.
The URL is indeed incorrect. The format of the URL for MS SQL Server 2000 databases (which you're using, based on the driver and URL given) should be jdbc:microsoft:sqlserver://HOST:PORT for opening the default database, and jdbc:microsoft:sqlserver://HOST:PORT;DatabaseName=DATABASE for any database. The :PORT part can be omitted to use the default port 1433.