Thanks. I think first of all I should update the OS and resources from Korg website.
I also want to know if the sustain pedal does what the joystick does or not.
According to this video:
http://www.youtube.com/watch?v=XJZc8XI2uxk it looks it can only make a tap sound.
Also, can I connect Guitar stuff, like amplifier and processor (Digitech RP350 which has a pedal) to PA500?