are you using a recovery image? if so which 1? it is usually possible to just update the payload in the image you have but would need to know what you have at the moment?
there are currently various versions of gia manager and open backup manager but again depending on your payload you may get better results with 1 over the other. you can now play new releases such as ea mma and moh, again depending on your payload and backup manager, some if not all the games can now be updated via retail updates with the correct setup.
so start with letting us know what you are using and what you wish to achieve games wise.