Yup, did that! Stuck the .exe and the warp.pof files in \games\FS2\, ran them, and nothing!
Screen goes black for a few seconds, then it comes back. An errorlog.txt appears with a load of info - the gist of it is that the "FS2_open.exe caused an access violation in 001b:ffffffff". It also gives lists details of a stack dump, and a list of programs running (looks like the contents of the taskmanager when you press ctrl-alt-delete, all the background windows stuff) with their time stamps, etc. Basic'ly, it don't work.
I don't know what causes all this, but the same thing happens with the fred_open.exe as well. Any ideas? I haven't a clue when it comes to this sort of stuff.
PS. Does it matter if the game is patched or not? I'm patched to v1.2, but I'm not aware of any newer ones.