Here is the entire video from the CNN/YouTube Republican debate from St. Petersburg, Florida, moderated by Anderson Cooper, which aired in 11/28/07. I have it now hosted on sevenload in 4 parts:

Part 1:

Link: sevenload.com
Part 2:

Link: sevenload.com
Part 3:

Link: sevenload.com
Part 4:

Link: sevenload.com