Ok first off its not really a problem but I have no idea what's going on, and second it didn't occur on my computer but on a friends of mine while I was present. Alright so I give him the disk copies I burned of FH .65, .67, .67A, and FH Realism. He loads it up so he can run a server for me and my other buddies so we can play, but when he goes to pick maps there are ones that I've never even seen before and ones that I thought were not modded at all. This happened a couple of days ago so off the top of my head I remember there was a map called "Atlantic", Omaha Beach (vanilla version) was modded , Kursk, and Kharkov were too. I didnt know what was going on. He loaded up Kursk to see if it would work, and it even had a costum FH loading screen, and it wouldnt let me get into the server. The thing I really dont get is that my other buddie and me used the same installs as him and we don't have anything at all about those maps being modded? Am I crazy?
Old maps that were in before 0.65 I bet your friend had an old version of FH installed and you installed it over. Do yourself a favour and remove the whole FH folder and reinstall it from the scratch ;)