I tested the site (all pages) with Avast and it didn't find anything. Then I went to the McAfee SiteAdvisor site and typed in the URL. It claimed the site had a link to an attack site (by IP).

I downloaded all the files from the site via FTP and searched their contents for that IP address. Nothing.

McAfee seems to have cached this error from when a page on the site was legitimately modified maybe a year ago and it hasn't done a rescan since then. At least that's my assumption based on the fact I can't find any such link.

II wrote to them asking for them to rescan or otherwise fix this problem or that I'd be forced to put up a warning telling visitors that McAfee software is problematic, out of date and does not provide any real-time scanning ability, with advice for people to uninstall it and install something else instead, like the FREE Avast which operates real-time.