For the record, I'm also a member of another website where UploadMaster posted (and is also trying to figure out the issue, it's also the originating source of the current copy floating around), and he/she posted way back on Saturday when the game first leaked that they had cracked it and were uploading it at that time. They then disappeared until Sunday afternoon where they said they just couldn't be bothered to upload it then, but don't worry, it works great and they'll find some way to get it online that day. It is now Monday, they have come here claiming to have a working copy (again), and are pulling the same thing.
TL;DR: UploadMaster is just seeking attention, just like all those fake PSP groups who claimed to have WORKING CUSTOM 5.55 FIRMWARE in just another day or two, there's just another couple small bugs to work out...