On a different subject but related....
You have any other issues with that particular kernel outside of the video driver stuff? When I upgrade my kernel to that exact version, it breaks all kinds of stuff on my machine. I have a standard RH9 install and updated with the RHN, but I cant use that kernel. :-(
As for your question, you have to re-build the driver for every different kernel. You can try to run the update, or try to force and update. I havent had much luck with the 4363 driver in general though.
lol.. come to think of it.. maybe my machine just doesnt like the latest stuff!