I haven't personnally tried it yet but my understanding is that the new 3.2 branch now compiles on the devel kernel but useability and/or performance is not there yet.
...i.e. the 3.2 introduced a performance drop by themselves and they don't enable 3d accel, under 2.6, even if they compile .
Also, what could be a better alternative, Gentoo has modified a 2.9.13 pkg to compile on 2.6.
You can get it
here , it's basically modified .c files to replace the originals in your /fglrx/build_mod dir.
I think they also have the full driver [...separate kernel module and binary files pkgs] including their mod but I lost the link.
HTH