Hi,
I don't use Suse, but I will try to help you anyway....
the 3D on radeon mobility is quite recent, it is not even on XFree 4.4...
if you had it with mdk10, it is probably because they use their own XFree
I use the DRI trunk of XFree, in which they develep new drivers, and since 2 or 3 month I have 3D acceleration with my radeon M6...
in fact if you want 3D, you have to check out the sources from dri cvs, compile them and overwrite your xfree provided with suse....
another simpler solution, is to wait for XFree 4.5 (or 4.4.1 if it exists one day
)