Another update, CJPC was able to test it earlier today and it is (as expected) the legitimate 2.52 Debug update file.
He ran out of time tonight, but tomorrow we will make a post for it and add it to the download section.
Good news for those who wish to update their PS3 Debug/Test consoles, and also for those with Retail PS3 consoles with Firmware higher than the last 2.30 Debug Firmware... as now if theirs is under 2.52 they can update to the Debug to check out the non-functional menu options and then update to Retail 2.60 when they get bored of it.
For those seeking to install Debug Firmware on their Retail PS3 console, here are some links on how to do it:
thats awesome! now i just gotta work out how to get it done.. i am well looking forward to it. yay to all who have already done it. this site is so awesome. i love it!!