When you hook your PSP up to the computer is their a folder that contains the versions of the PSP operating system? (ex. 1.50, 1.51) If there is, and you have version 1.50 than I believe you would be able to post the folder(s)/ file(s) for download on a site or ehre possibly. Then people could downloadthe file and overwrite their 1.52 with 1.5 and then be ableto run homebrew. I do not as of yet have a PSP though, so I cannot check myself. Someone please post back and tell me if that folder or file is there or not!