Slipstream SQL 2008 Installs
Slipstreaming is a term to update your installs files to a patch level that you are interested in for SQL 2008 only. There is now a Slipstream FAQ on MSDN blogs. If you know all about it, jump right to the how to: SQL Server Setup blog, or the official KB955392. PSSQL blog has another good post on subject.
Also, make sure you have SP1 from KB968369 (build 2531) not KB959337 (build 2520 - CTP release).
-Happy upgrading!
