Dear Nakazoru,
Nice to hear your interest in windsurfing still remains after all these years.
On your earlier questions:
1. Can I do rental @ PA without any certification from PA? Or will I be asked to attend a Level 1 class?
Unfortunately, PA do require certification for rental due to safety. If not, you will have to attend their level one class.
2. I would like to attend Level 2 but would like to know if they teach tricks like fast tack, water start and basic jump? Again do I need level 1 from PA for this class.
Unfortunately again, PA does not conduct level 2 (as far as I understand). In either case, the local conditions do not normally permits this type of techniques/ skills to be taught on a regular basis. And yes, I will think the level 1 certification is required assuming PA does conduct lessons with fast tack, water start and basic jumps.
In anycase, welcome back in Nov!

Best regards,
::Windsurfing Factor::
http://www.windsurfing-factor.os3.sg/