Is it a 2 or 3 seat beach?
Which heater do you have, factory or after market? You may have two. There should be stickers on the end of the door visible when its open for each heater in place.
Key things to remember (there are a lot of threads on the beach on the forum searching will turn up most topics) are below:
Poptop:
Open windows/doors (I open the sliding door) when putting up or down the roof (prevent air pressure and deforming the roof). Very important when putting it down! When putting down (again with door open) watch carefully to make sure the canvas doesn't get caught in the scissor hinge (bellows bungee is a big help), or bend outwards and get caught in the seal.
Spinning seats
Drivers seat is a bit of a knack, put in gear as you need ot let the handbrake off to spin it. There is a good video on the seat knack here somewhere but I don't now where. If you get it wrong you can scratch your plastic easily.
Table
Advise passengers in the back which is the door release and which is the table The table is easily dented and I had someone release the table into the road when trying to exit. Secure anything in the back area to avoid dents and dings, they are expensive to replace from VW.