Vicki,

I had both. Same reactions as GRE1.
Here is a link to the Taxol web site that shows how it was invented. Check it out. It's pretty cool.
http://www.taxol.com/timeli.html

Carbo V.S. Cis:
It seems that the differences between the 2 agents are minimal and may be insignificant in terms of survival. The real differences are in the toxicity profiles. Cis is much more toxic in terms of side effects.

Also,

I am from Chicago. Where is your dad getting treated?

The U of C has an excellent re-iradiation (IMRT) plan with 5FU, Iressa and Hydrea. If this is in fact not a recurrance this would be the absolute best protocol for your fathers long term survival.
(Brett this is not a plug, please dont sensor me)
Call or e-mail me if you have any questions.

Robert