i like the ring-tailed lemurs the best

odd little animals that they are.
your focus issues may not be the camera, or the lens, but the person behind it. 300mm is kinda tricky to hold off hand unless your shutter speeds are pretty quick. id suggest a tripod maybe...
also, i dont know the camera your using, but if you can select the focusing point manually, DO IT. i almost always use my center focusing square on my rebel G, and then recompose my shot. once in a while off the tripod i use one of the other ones, but i rarely use auto-select. some of your pics of your neice look to be cause out of focus by this...just an idea
i have the same lens, and with my 1 roll of film so far, it does much better off a tripod, but most of my pictures were taken in bright sun light so my shutter speeds were pretty fast, and my offhand shots wernt too bad. another trick is to focus on an object, and if its not moving anytime soon, switch to manual focus and take the shot. works better off a tripod, but guarantees the lens focusing dosnt hunt any.
i like your pictures though, looks like you had fun!!! i dont think they are too bad either, probably better than i could do, without a tripod that is
