I've used RH as my primary OS from 6.2 to 9.0, then I tried Debian, now Slackware rules. Slackware is just plain great as a geek desktop :)
Using something like RH 6.2 or 7.1 as a webhost is simply crazy. You're almost certain to be hacked badly someday with such ancient stuff. Sure it's still usable (after all win98 is still usable too) but what about security update? They've disappeared for years...
However upgrading perl would almost certainly be a good start.. 5.8.0 is quite brittle.