It WAS the gamedata file but I assumed ( and I should say I say this all the time never to assume and should have listened to my own advice) that the the link on first page where is says latest gamedata file MEANT latest file. I was replacing the data file from package with the one from that link. I found a link I think 2 pages back and it worked like charm. So I will be a man and apologize for my part.
PS For anyone trying to start up a new l4d2 this is the link to the LATEST gamedata file as of this post.
http://forums.alliedmods.net/showpos...&postcount=906