Enter the password "" (case sensitive, and without the quotes). This password is for uploading images; it does not log you into PBase.
It is possible the password may change from time to time.
See the current challenge thread in Sony Talk Forum for the current password if "stfpost" does not work.
MAKE SURE COOKIES ARE ENABLED IN YOUR BROWSER OTHERWISE PBASE WILL NOT RECOGNISE YOUR PASSWORD AND RETURN AN INCORRECT PASSWORD MESSAGE