MY COMPOST BIN STINKS LIKE AN OLD RUBBISH TIP AT THE MOMENT WAT CAN I DO IT CAN'T BE RIGHT???

your compost bin IS a old rubbish tip to a certain extent. If you avoid putting meat products in there, trhen itr should stay OK, but ultimately, everything needs to rot down, which will give off some smells.

Try to mix it, to get air into the mix and it will help.