Yes, the 7920 will work with the following access points with G radios:
C1200 with G; C1130; and C1300.
There should be no changes that you need to do on a Cisco AP for a G radio,vs an AP with a B radio in order to get the 7920's to function. However,please make sure you are following the 7920 deployment guide's AP settings
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...