MTP download W/O windows validation:

Hey guys I'm new here, I'm not sure if you addressed this problem already I read part of another thread that didn't seem to address my current problem.
I just recently got a at&t phone on android os. However I am unable to access it with my computer because I lack the MTP (media transfer protocol) used to communicate with it.
I am currently running a cracked version of windows xp pro on an older system. Normal windows users can just download windows media player 11/12 and the MTP is included within it. However in order to do this windows requires you to "validate your copy of windows", which I'm sure would cause more problems than it would solve.
Thus I seek a 3rd party MTP source or analogous software that requires no such validation.
Any ideas??
Thanks a bunch.