Full Browser Sites -- Plz help!

Hello all,

What’s the best practice to scale images in full browser sites?

I am new to Flash and have a pretty good understanding of how most things work in Flash. My newest goal is getting Flash to scale 100% on all browsers. But when I do, my pictures become pixelated and I’m sure videos would do this as well. So my question is - what’s the best practice or actionscript to keep this from happening?

Sites like http://www.worldofobjects.com and http://www.thomas-ciszewski-photography.net that have utilized their abilities to scale their images on any browser are great examples. How can I achieve this? Please help.