Ok, seriouslly, ive been searching for weeks now to try install SQL server 2008

I can install, but i cannot run installation center to install instances. First i was having problems with installtion media! Finally found the installtion media which took a while, but then when i run the installation its telling me my version of SQL server is too new...

WHAT DO I DO!!!??

ANYONE?

Thanks!

Server 2008 R2 Ent