l just boughtR-Reg Fiat Punto - does anyone know how to put the backseats down?

Why do you want to put the seats down ? : -)

pull the bottom seat forward towards the front seats and then fold the back seats down mind the seat belts when putting back up

is the switch not hidden by the seat belts?

First of all, put ur hand to the back of the cushon that u sit on & pull it toward the front seat, it should fold down so the cushin side faced the back of the front seats. Then on the back pannel at the top should be a plastic leaver which u pull forward, which unlocks the back pannel, then u should be able to putt that unit foward towards the front of the car unill it is virtually flat. l then put an old cover over the folded down seal to protect them from what ever l load into my car.

There is a clip at each end of top of backrest. Undo them before folding backrest down, (and after lifting seat bottom of course).