HMT 3.5 doesnt work on 64-bit?

[Teh_Arbiter]

I've been using HMT since forever to mod Halo Trial on a 32-bit copy of windows xp. Now, i upgraded to 64-bit because there were a couple of programs that i needed to run that couldnt be run on 32 bit. Everytime i try to open ANY unmodded or modded map with HMT, I get a "file not found" message on win xp pro x64. I've tried everything, running as administrator, using Altimit's demo hack, sparkify, etc.I've downloaded several versions of HMT.These maps open fine in eschaton. I also went to task manager and there are no processes using the map files. If someone could help i'd appreciate it