For the update to work you have to put the .pup file in to a folder
So on your data stick, you have to have a folder called PS3 then inside that one you have to have another folder called UPDATE then you put your .pup file in the the UPDATE folder.
ROOT - PS3 - UPDATE - 2.52.pup
Now you can update with no probs.
Also depending on what saves you have not all of them will back up. Need for speed carbon for example.
K&N Typhoon, US spec rear lights, Front & Back aero wipers, Cruise control, De-badged, R32 spoiler, Autowindows, Anti-Hijack
, Illuminated needles, Miles to empty, Front black badge, Xenon interior lights, W8 light, V6 4Motion front valence, Sharan Badge