I rarely use flash but really like the idea of this...

example is found on this site: http://www.thefightnetwork.com/

you see "1,2,3,4,5" each number you click displays something new there.

How can I create something similar but it would be my header and w/each click they would get a new header?

you can do this by learning flash basics. Search for "gotoAndPlay" in actionscript help, other part is the basic flash knowledge like adding images, using keyframes in timeline. i guess you can do that in 1 hour.