I'm not sure if I get the idea but I'll try to answer. This dummy was made from scratch, an it has a custom made armature too, so basically is incompatible with any previous animations. If you want to do new animations or use the ones you already made, I recommend to you to use the .blend file it comes with the package since it has the rigged model ready to use, I'm sure there are tutorials on how to animate and adapt animations in blender, or export the model to 3ds Max form blender if you feel more comfortable in 3ds Max. Regarding the import and export problem of the .dae file, I can't help you, I have no idea what the problem could be, sorry. But as I said earlier just use the .blend file.