Microsoft SQL

How do I get Microsoft SQL? I got MYsql, but it wont work. Please PM me with details.

Microsoft SQL Server 2005 Express Edition (Recommended)
http://msdn.microsoft.com/vstudio/express/sql/download/

Microsoft SQL Server 2000 Enterprise Edition Trial (4 months)
http://download.microsoft.com/downlo...73/SQLEVAL.exe

THANKS...
I want to install SQL2005, but it said that I must install the .net framework 2.0
Must I follow this step??

Can someone make a tutorial for the 2005 one? I DL'ed it, and tidus' tut won't work.