is there a guide or stickie here explaining the 1.50 kernel - particularly the 1.50 add-on for cfw 5.00m33-6 (phat)? on the basic level, i don't understand the distinction betw the (ms0:/PSP/) GAME150, GAME5xx and GAME folders. I don't understand prx files (add-ons and patches?). on most occasions, me not understanding fully doesn't stop me from running homebrew apps, but there are occasions where i get confused... i have just installed iRshell onto the Phat and its got some options regarding 1.50 kernel but i am lost there. also, is there a good guide to explain the file/folder structure of the PSP ms0:/ (root of memstick, etc.)? Merry Xmas everyone!