Is there a way of buying a kind of divider, or only the inner compartments for a bin so that it can be turned into a dividing recycling bin? 

I have seen new bins which help you divide your waste in different categories. As a family, we are pretty good at recycling, but the Council is now providing us with little boxes to put our organic waste. We have a compost bin that we use for vegetable/plants etc, but now we will need to put all the other organic waste (dairy, bread, bones) into the new bags. It's a great idea, but i was wondering if anyone knew where we could get "replacement" inner compartments for our existing bin, rather than buy a brand new one? It seems to me a bit of a waste of money to get a new one, furthermore I would have to throw the old one away and it is perfectly good! Thanks in advance for any tips!

Could you put some hooks onto different sides of the bin to hang the bags on so it is divided? 

There are so many types of bin. Why not just use your bin for one type of recycling? Or all the bottles and cans? It will always depend on what your Council will collect from you and how they want it separated. You can buy dividers for the green boxes