Gamefront isn't even working at all with IE (at least with my settings, granted I have my security set fairly high), and I had to use FF to d/l part 2. Of course, part 1 doesn't d/l at all (yet).
As long as I'm here, I'll just mention that in addition to the 3 unit XML errors while loading the 'old" part one, I'm missing all of the terrains as well. There is no terrain folder in the mod's arts folder, and I wonder if the fact that I don't have Civ4/BTS installed on my C: drive may be the problem (though all my other mods have no problem with the game not installed in the Program Files folder).