Max can't import .blend files, but blender can export .blend files to .obj and .3ds which can then be imported into max.
The models for the game are in the CS format in your PS files, which can't be viewed in max or blender (technically they can if you reverse export them, which I've seen Zeraph do, but they were limited to the point of being worthless), and they will not be released in the original .max format. In other words, find other reference.
CS is a game engine. It takes your artwork and rules, and makes them work.
Cal3d is a library for making skeletal animations work. Basically, developers write a few hundred or thousand lines of code (as opposed to many many thousands) and cal3d skeletal animations can then be used in the engine under development (in this case CS)
I'll look into the cal3d link.
The menu you installed was the PS exporter menu. There is a link somewhere up there on how to use it.
Buy me dinner.