What'd I tell you... Barry... ;)
I build them or spec them... Exactly why I usually avoid this kind of thing...
I usually build everything I can, or get someone to build it for me...
You MAY want to look at Microway or Penguin Computing for these kinds of things... they really do indeed rock...
Just a thought... Watch out for that E1000 driver in RH-7.3 it has some re-transmission problems on re-direct... big ones... if you replace the ".c" and the ".h" in the directory in the redhat source tree /usr/src/linux-2.4.18-10/drivers/addon/e1000 and then just load the proper "config" to fit the mahcine from the /usr/src/linux-2.4.18-10/configs/ and then edit the Makefile to show a version number without "custom" on the end... you should be able to build the kernel and modules (use make bzImage for best results lately for the kernel) then you'll have to edit /boot/grub/grub.conf to reflect what you just did...
Have fun, if ya want I step ya through it.... *hehehe*
You'll see even better performance, the major version number changed and incremented. From 3.5.19 (I think) to 4.3.2. Made a HUGE change in raw throughput also... got nearly 80% theoretical throughput from this machine... like 5.5GB a minute over GB Enet.
Just a thought... unless it is good enough.