Long shot lost volunteer website.

I am probably setting myself up to be burned here but here goes...

I found this really lovely organisation that offered a lot of low key interesting volunteer ideas around the world that had this great one for South Africa. It was where your funds paid for medical equipment and petrol for a car to deliver to hard to get to aids affected communities and you got to tag along for the ride helping out where you could. It was a low budget site with a lot of text. What i liked about it was that it seemed like a decent way for both parties to enjoy a partnership without you draining them too much. I had it in my bookmarks then it got lost. I have searched and searched! The group seemed very genuine. Any help or suggestions would be greatly appreciated. Thanks.