Actually, you need a computer to run the self extracting exe's that contain the spl files unless someone were nice enough to post the nbh's for you to megaupload or something. I'm working on it at the moment, will post links when done.
HSPL0.57 nbh file -
http://www.megaupload.com/?d=2Z1GPJWB
HSPL0.43 nbh file -
http://www.megaupload.com/?d=PEQVBEWB
Download, rename the one you're using to DIAMIMG.nbh and copy it to your internal storage card and follow the instruction in the Flashing Roms from 4 gig storage thread -
http://forum.ppcgeeks.com/showthread.php?t=40490 . For more info on spl check Flashing, Unlocking, Relocking thread -
http://forum.ppcgeeks.com/showthread.php?t=36062 . This is my yearly spoon feed.