More information would have been helpful, but I am pretty sure you do not have priiloader installed. If that is the case then download priiloader and find the hacks.ini for what ever Firmware you have(4.0,4.1,4.2, etc.). For priiloader search on here to find the thread for it, Thread should have instructions: then install it, and after it is installed select the Skip Disc update check or something along those words to stop the game from asking you to update.
If you need more help just ask.
EDIT: tj_cool said it perfectly