Hi and greetings from the UK

just bought one of these from Steve at skytvspecials here in the UK.
What a great guy , delivery was ultra fast.
Rang him re a couple of questions, does it take 3 tokens a game, answer yes.
Whats the gane counter for ,answer ,for the bonus stages .
Now that I have played it a while I have a few more questions I was hoping some kind soul could answer so thanks in advance.

Have noticed when playing that the screen displays bonus but cannot for the life of me what trips all the action ?
What does the 1 bet 2 bet 3 bet lights mean ?
Also ther is two silver buttons on top ,one pays out any credit.The other one has a number one on it,any ideas.

Is ther a play manual anywhere which answers all the questions I have and feel will have.
Ayone any tips for this machine which is my first foray into pachislo.

Thanks for taking the time to read.

Keith