ok i was able to get a tif game called troy to boot up on the main boot of the psp. the fist thing i did was renamed the loadbinary.tif to wallpaper.bmb and then i replaced the origional wallpaper.bmb from the vsh file (useing file asstant) with my new renamed wllpaper.bmb and then turned my psp off then back on. my psp then booted with the normal psp logo and then the screen turned red and flickered and then troy loaded up. be warned though this messes up your psp. i cant boot back up normaly. im thinking that by geting a normal pic and renaming it like the .bin file in the troy folder. maybe that will work. if anyone has a fix please let me know. and if you know why the psp flashes red before the game starts that would help too. lol im not sure why it does that.
oh yea here the video take a look hope it helps!!