The install of Reporting Services 2000 usually auto-installs a crippled copy of Visual Studio 2003 (Reporting Services elements only), so you should be fine as long as you use the proper Visual Studio with RS.
Catadmin - MCDBA, MCSA
"No, no. Yes. No, I tried that. Yes, both ways. No, I don't know. No again. Are there any more questions?"
-- Xena, "Been There, Done That"