Well, since I installed Virtualmin everything's got a lot better, and the only thing I can't get working now is Webalizer.
If I go to the Webmin Webalizer Logfile Analysis page, it doesn't respond to anything I click on (checkboxes, links, etc). If I click Schedule Selected (there are none selected!) I get a page that just says 'Error' at the top.
Should I just uninstall and reinstall webalizer with yum?