Your glxinfo shows:
This tells you mesa (software) is running and not fglrx. Mine shows (for 780g and catalyst 8.9):
OpenGL vendor string: Mesa Project
OpenGL renderer string: Software Rasterizer
OpenGL version string: 2.1 Mesa 7.1
Did you have errors when running the autoinstaller (sh ati*.run)? Are you running a different kernel since you installed the catalyst drivers and need to rerun? Sorry if you already answered as I didn't go back and read earlier posts.
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Radeon HD 3200 Graphics
OpenGL version string: 2.1.7979 Release
Edit: oops, sorry, I didn't notice this was open source driver post as I'm reviewing both.