There was a time when rained applications and hombrews games but then many stopped work because of incompatibility with newer versions of Custom firmwares and this is also associated with an abandon projects . Probably there are games and applications you want to reuse but now in current firmwares is 4.xx. In this tutorial and thanks to an application will teach them to sign the files .PKG who want to reuse such an easy way you will not believe .

http://ps3.scenebeta.com/tutorial/fi...firmwares-4-xx