The URC-7200 is a non-upgradeable remote, so getting UEIC to add the codes is not an option, the remote doesn't even have the 6-pin connector nor the holes to solder one on.

Have you verified that you don't have audio codes 0158 and 0159 in this remote as these are the codes you probably need. If you have the codes then you can probably re-create any buttons that aren't automatically mapped by using advanced codes, which you can find on my site.

Rob.
http://www.hifi-remote.com/