I'm afraid SAM has never shipped a SQL 2000 template. A quick rummage through the Content Exchange only turned up the following.
My recommendation would be to apply one (or both) of the following SQL 2005 templates to see if either of those work at all. I'm afraid I no longer have a SQL 2000 server running in my lab to test with. I don't expect every component to work in these templates, but those can be easily disabled.
If that doesn't work for you, I recommend reading some SQL 2000 performance blogs/books/etc. and using the Component Monitor Wizard to create your own application template for monitoring SQL 2000.