Sorry if this is obvious, but I'm kind of oblivious to how to do it. The installation guide clearly says how important it is to install the hotfixes... but I'm not actually sure how to. If this were a normal mod, I would just pop the files directly into the games folder... except in this case, there are *three* different games folders; Fallout 3, Fallout New Vegas, and TTW. If I had to make a wild guess I'd say I'm supposed to pop it into the TTW folder, but I wasn't sure as it doesn't have a meshes folder without the hotfixes... and in modding, I've learned to always be as sure of what you're doing as you can.
EDIT: Correction, just the F3 and New vegas folders. Jusdging by how the rest of TTW *appears* to be installed in NV, I'd guess that's were the hotfixes go too. I'd still like to be sure though.
Sorry for what probably has an obvious answer, normally I would ask this in a chat room. But I can't find one for TTW ;>.<