The 2007 updates are probably for the compatibility update pack, which installs part of Office 2007 as filters
However - and this is where things can get confused - don't forget that most Win7 machines from volume manufacturers came either with the Office 2007 preinstalled trial, or the 2010 trial / Lite preloads
In this case its quite possible that the 2007 trial is preinstalled, but not activated. If Office 2003 is then also installed, funny things can happen.
Restore it back to an earlier time. You'll probably get an "restore failed" error message - but that message is itself usually and error, with the restore working!!!
Then try doing the updates one by one and see which one is crashing/failing
Once we know that, a fix may be possible