Look for the
Character Studio Files section of the
FPSC's Downloads at their website.
If you have 3ds max, then the FIG file in that download is probably what you're after.
You may want to consider contacing Bond1 (the maker of FPSC packs 17 & 18), because he uses 3ds max also.
I know he has made additional animation for the FPSC skeleton for those 2 packs.
I can't say if he can/would release those, but it couldn't hurt to ask.
Bond1 is the 3ds to FSPC pro here, just look at those packs. (they got videos)
I'm sure he knows this stuff off the top of his head.