oh it's cool i was gonna say if you know how to use PS3 MFW Builder v2 or v3 i was going to tell you can actually get *Install Package Files on 4.30 & 4.31 with a kiosk firmware and if you can able to fit this:
on the kiosk firmware then we be able to install signed packages easily
---------- Post added at 09:41 PM ---------- Previous post was at 09:38 PM ----------
even though *Install Package Files automatically comes bundled in the kiosk firmware orginally already to tell the truth, but the XMB Manager + + is a more addition to it to making it better for ofw users who are in the same boat as you are.