(Copy and paste from my blog):
Here this revision B of this custom firmware. Its main two newness is that recovery contains menu.
· Two recovery menu.
(If flock one, executes the other. Note; If you, remove the file vshmain.prx , psp brick absolutely.)
· You can have different topmenu_plugin.rco in \psp\system\xmb1, \psp\system\xmb2, \psp\ system\xmb3.
Later, you can change them from recovery menu.
Download : http://www.sendspace.com/file/h34883
Via : www.becus25.blogspot.com