I finally got mine working, using the powers of deduction i think i narrowed the problem down, the xtaf explorer refused to open my data when i put it on the usb, i looked through and seen that on my xbox the usb conatained abou 302 files, these included 200 shirt edit data things.
I formated my card again on the xbox and stated up pes, i used the usb as the place to load/save this meant i was starting a game with none of daymos OF but i did have the konami ones which ARE needed. So i put the usb back into my pc and tried to open it with xtaf and it worked so i stuck daymos's OF in and loaded put the usb back in the xbox, but it said it was unformated.
The reason it was unformated was because it had too many files on it, you can only transfer 180 or something at a time.
So that got me thinking, xtaf opened my original data wit only konami updates but not my data with the OF. I believe that the xtaf explorer can only open files with a maximum of 200 pieces of data.
-load up a new save game with ONLY konami updates!
-save it to your usb!
-split daymos of into two, so up to 180 on one and the rest on another
-load them onto your xbox REPLACING your real save game data thats on the harddrive
-load one a time, but name them both 0000001 so they are recognised....
This way you avoid the maximum limit on the xbox and xtaf explorer,
then again maybe i just got lucky...