Music prx and Map this ?

[hawkdanop]

i know this is a dead thread but *bump* for help i have 3.90 m33-3 psp-290 gps unit running the newest mapthis 0.55 and am using the files linked above for my music prx's and they work in everything cept mapthis they don't even load in mapthis i can't get display nothing... fast ish help would be awesome... oh if it makes a difference i have a slim

Ditto, has anyone solved this problem?