Which files, exactly? ncchinfo.bin? Also, there doesn't seem to be a decrypt option on the gateway menu...
Edit: I was searching through the rxtools menu and found an option to generate Xorpads. Is this what you were referring to?
What does the patch tutorial mean by "Copy this file to your SD-Card to the Decrypt9-workdirectory (normally "SD:Decrypt9" or just "SD:/") Also, how exactly do I start Decrypt9?