Why do you even install CCC?
Install the drivers via inf files? Or locate individual install files for display drivers after extracting the main driver zipped file?
0) Download and run amd_cleanup_util_1.2.1.0.exe, use google to find it
1) Download Catalyst from amd.com
2) Run it
3) When it asks 'where you want.. blah-blah.. to extract?' specify "C:\temp\bzzz"
4) After unpacking finished and it asks you to press "next", press "cancel" instead
5) Press "Windows button"+PAUSE, open Hardware(win xp)->"Device Manager" or Control Panel->System->Device Manager
6) Find your GPU under 'Display adapters'
7) right click->update->browse my computer->let me pick from a list->have disk->C:\temp\bzzz\AMD\Support\12-6_vista_win7_64_dd_ccc_whql\Packages\Drivers\Display\W76A_INF -> OK
8_) After installation go to Control Panel->Administrative tools->Services and disable 'AMD External Events service'
9*) If after all this cgminer/GPUZ reports that there is no OpenCL, go to C:\temp\bzzz\AMD\Support\12-6_vista_win7_64_dd_ccc_whql\Packages\Apps\OpenCL64 and run OpenCL.msi
path in step 7 could be different.