Problem connectiong to mangos server

I've set up a mangos sever with the databases and such from this page: http://forum.ragezone.com/f114/mango...newest-254453/ And i've got everything up and running, the mangos.exe and realmd.exe work and the server starts up, but when i try to run the client it comes up with an error when it's connecting to the server: "Unable to validate game version this may be caused by file corruption or interferance from another program... please visit blizzard tech support blah blah" I tried with two client versions: the latest 2.1.1.6739 and an older client 2.0.0.6080

Would anyone happen to know how to fix this? Any help would be greatly appreciated ^.^