Never mind all! One of the folders was broken (custom_maps). I recently changed computers so I manually transferred everything!
I've tried everything (just about).
I use XP, and have extracted Masteries to My Documents/My Games/Titan Ques - Immortal Throne/custommaps
All my other custom maps work, but this doesn't!
Please help, I've searched many threads and have been ages on this problem and it won't fix!
P.S. I use Fanpatch 1.17, then I uninstalled it but it still didn't work!