i'm new to hunting and i have no idea what kind of arrow tips to use for small game... do i use field points whit one of them small game stoppers?... or do i go whit a type of broad head?...

I would go with some type of judo point. If you look up any of the small game heads online, they should all work about the same. Since rabbits have such a thin hide its likely that you may get a pass through or at least decent penetration with some of those tips. But the biggest thing for me would be something that doesn't go into the ground so I'm not loosing a bunch of arrows and any of those should do the trick. If you are hunting for meat, try a bird judo point so you don't get as much penetration. Try some out and see what happens, happy hunting.

Judo points. Kills em right where they stand.

Either the fore mentioned Judo points or you can buy items, if they still make them, called Adders. These are a sheet metal type item that goes between your insert and field point. They act sort of like a broadhead.
here they are: http://www.bing.com/images/search?q=...ders&FORM=IGRE