hi,

I've got kernel 2.4.20 for my RH Linux 7.3. Haven't try yet for RH Linux 8.
After install new kernel..I have to tweak my boot loader (lilo). You might need to changed your boot loader configuration (but I'm not really sure for RH Linux 8..maybe same as RH LInux 7.3).
I have dialup connection for my internet connection..and that new kernel took me 5 hours to download+compile it.If you have have fast connection..you're lucky...
Good luck..