First thing is good to made new topic with your problem, more people can help you. More info mean:
PS3 model, your current fw, backup is mounted in? (mM, wM, managuns, irisman) did you tryed different backup manager, app used to backup your game to iso, etc. Also i try figure out that iso work on no bd system. I never tested this so wait patient until i answer, and make new thread with your problem, which is not exactly related to MAMBA LOADER (+AUTOLOADER) i try to answer you there.
new topic opened here ------> http://www.psx-place.com/forum/help...so-able-acces-aplications-2392.html#post18416