How to recover sql server database data?

Hi all. A few days ago i installed mcafee total protection 2007 and that disabled my internet connection totally!! I couldn't fix it so i had to uninstall it. After uninstalling mcafee total protection 2007 still i couldn't join Internet!!

So i got mad and went and made repair installation of windows xp pro. After repair installation i couldn't activate it since Internet connection was still not working!! So i went and installed another copy of xp pro on different folder and named it WINDOWS (old one was WINDOWS2).Thanks god now i could join Internet but all my shortcuts and menu items are not visible.

Unfortunately I can't even start sql server 2000 either!! could any one tell me what should i do in order to get access to all database tables and data that i had in sql server and make a back up. I didn't install any new sql server yet. I be happy if an expert tell me what should i do. The installation folder of old windows(WINDOWS2) is still available along with sql server installation folder.Thank and looking forward for reply.