Hm. It was built into the m33-6 i beileve. All i get in the M33 VSH Menu by hitting select is as follows
CPU Clock XMB Default
Cpu Clock Game Default
USB Device Memory Stick
UMD iso mode Sony NP9660 (i switched to from the m33, stoped ISO Video mount None freezing for now)
Thats all i get. Nothing else in the menu to change.