use
these instructions
so you don't end up messing up your current version of gcc in the process
this is not to say gcc2 will compile on your system we are getting pretty far away from gcc2 now
but it's worth a shot..
I am curious why you say MPlayer needs gcc2 ???????
i compiled MPlayer just fine with gcc 3.3.1
this might help for MPlayer
though it is older than your system and is not done with the new kernel/glibc headers
it also might work and works with newer gcc