I just purchased 2 games that I am very excited to play, but on each game when I try to go to download, it just goes to a blank white screen that says"Error 404 : Forbidden". What is going on??? Help!

What browser are you using? You might want to try compatibility mode. You may want to try to close all your windows and restart. Or you can do what I do and flip the switch in your library and use the GOG downloader - its easy peasy.

If none of these work, I'm sure others may have better ideas.

Theres been a few similar issues such as this the last day or two during the sales.
This for instance, whilst not the same, suggests there may be some server issue or possibly (as ww_gog pointed out) it could be to do with your browser or a variety of factors.
heres a thread on the same (i think) subject from few hours back - no doubt the blue speaking people will be on here to help when europe wakes up! :)

http://www.gog.com/forum/general/error_403_forbidden_on_download