You're trying to install the fglrx on a 7000 ...???
Ati's closed source drivers don't support anything lower than the 8500.
Your only option is XFree's Dri "radeon" driver.
A minor adjustment to /etc/X11/XF86Config-4 should be all that's required.
Usually just adding, to Section "modules"...
...and changing driver to "radeon" in Section "device"
will do the trick
Oh! and you may also need this new section so 3d is available to all users, not only root.