If you didn't used mobility modder correctly the drivers themselves didn't see your card so they didn't install.I suggest uninstalling everything ati related.
Driver Cleaner Professional download from Guru3D.com
Use this little utility is very easy to use and nice.
1.Remove the drivers and all ati from add/remove program .. DON"T RESTART THE PC when prompted.
2. lunch the utility and use the filter ATI and then shoot clean
3. restart
4. install the modded drivers with CCC
5. report again
6. good luck