Well I'm confused. I'm currently studying for my MCTS in SQL Server 2008 and all the literature I have found up to this point suggests that instance support is 50 in Enterprise Edition and 16 in Standard Edition. This is cited by "The Real MCTS SQL Server 2008" study guide by Syngress and also the following link. Can someone please clarify as I wan't to be sure I know the correct answer for the exam!

http://www.microsoft.com/sqlserver/2008/en/us/editions-compare.asp

Many thanks