Here is another great homebrew for the PSP community that was created and updated to version 5.0 by PSP developer fouadtjuhmaster.A FJM File Launcher is an offline file launcher that works with your PSP.A The changelog for this update is listed below.
Changelog PSP
Added image
Created a EBOOT.pbp (thanks to OpenTube file of biscottealacrevette)
Added Exit button