Wondering about photos in flash

hi there,

i’ve recently been using a lot of photos in my flash animations, usually importing them as transparent gifs, etc. it all works out fine, but i’ve been noticing other sites who use photos and they are so clear…the edges.

for example:

does anyone know to any links or tutorials that will brush me up a bit on having such clear crisp photos like this? i’m pretty good at matting my gifs and anti-aliasing to blend into the background…but the sites above are perfect!

thanks in advance,