DeepIron, can you have a look if it provides a similar function to save the UVW-data into a single (binary) file? Or even if it loads .UVW files? (doubt it, I think it's just yet another proprietary Max-only format)
It's alot easier to just import the UV-data directly into the actual model in Max, than having to copy it from model A to model B.
Anyway, I'm really interested to hear if you can finally start importing some of your models into the game