Fork Airpressure help?

I just bought this bike earlier today. First DJ and what not. stoked on it and love it. Well it had been sitting for a year or so, so when i received it the shocks had 0 air in them. The guy i bought it from said they are Fox Prototype forks.. makes sense seeing there is a "proto-type" sticker on the fork. Also any info on the fork would be great. (if you can tell what fork it is and if it ever did come out)

Im wondering how much air i should put in them. i just did a little squirt and it helped a lot. is there a certain PSI?

Thanks.

(Seat is no longer tilted and that high. it looks terrible!)