Crystal Reports Pulling from existing DB

Message

   I need advice on how to implement Crystal Reports within VB using SQL 2000 as back-end.

I have stored procedure that I intend using with my Crystal Report. What I want to do is to use VB forms to pass parameters to my Report, what is easiest way to do this?

Is this the most economical way (code-wise) to implement this?  The issue is that I am trying to write custom reports for an existing DB with quite complicated procedures already written.  Pulling the data from the tables would be difficult for me, starting from scratch.  I'd much rather use the procedures that exist in the DB, and use CR to manipulate the output.

Thanks for any assistance.

Steve