SRSS 3.1 U1 will support 2.6 kernels and 64-bit kernels. Including the RHEL 4 kernels. So I downloaded teh CentOS 4.3 64-bit DVD image and will install that with the hopes that SRSS 3.1 U1 will do what I want it to.
This is a collection of techical information, much of it learned the hard way. Consider it a lab book or a /info directory. I doubt much of it will be of use to anyone else.