Help With Redhat 5.2 (Actually rc.d)

[BeNj]

I seem to have played around with the wrong things while in root,
i tried to upgrade gcc and i think that that's what started the chain of
affects that ended with
Redhat not being able to boot with an error of INIT: unable to load
/etc/rc.d ...

is there anything i can do except reformatting and rinstalling? (Fairly
new system, but i'd rather save it.)

Benji