finally had time to try it
folowed steps except reconfigure video card
added the radeon and modeset lines in the right places
fix worked with some problems
each boot the monitor goes out of sync for 10 seconds more or less, this old crt feels like it is going to break or explode
compiz is working again but it has some problems with some effects, will try to reconfigure them but nothing seems to fix the problems, small details but are there
glxgears is giving this weird numbers
359 frames in 5.0 seconds = 71.605 FPS
372 frames in 5.0 seconds = 74.183 FPS
373 frames in 5.0 seconds = 74.426 FPS
this was before the fix(and before the xorg update numbers were very similar)
3502 frames in 5.0 seconds = 700.356 FPS
3605 frames in 5.0 seconds = 720.805 FPS
3563 frames in 5.0 seconds = 712.499 FPS
google earth is working and was working before
i just tried a game and system died completely, rewriting this reply(lost in the reset)

if anything more is required, let me know how i can help