News via http://www.psp-hacks.com/2010/07/18/...lugin-updated/

Don’t get it twisted; this isn’t a new M33 release… This is Torky’s updated plugin — M33 6.20 — which now bundles increased compatibly for Go!Edit, FIFA 2010 World Cup and perhaps other 6.00+ required titles. Go!Cam (PSP-450) owners can also enjoy support for said peripheral while in the XMB — not just in game.

How does it all come together? Do this:

Download PSP Firmware Update 6.20 and Psardumper. Both are available below.
Create the directory “kd620″ on the root of your memory stick (i.e. ms0:/kd620)
Using Psardumper on the 6.20 firmware update, dump and decrypt usbcam.prx and usbmic.prx.
Copy the two files, usbcam.prx and usbmic.prx, to ms0:/kd620.
Copy this plugin, m33_620.prx and m33_620_user.prx, to ms0:/seplugins.
Activate only m33_620.prx in ms0:/seplugins/game.txt and ms0:/seplugins/vsh.txt.
Now it’s time I Pandora myself back to 5.00 M33-6. That’s where it’s at!