McAfee seems to be over-cautious. It's probably simply blocking the page because it's identified some weird Javascript. It's not necessarily anything malicious.
The easiest solution is to do what most of the 'regulars', here in AB's technology section, do. We nearly all use Firefox (which is less prone to security attacks than IE anyway), together with AdBlock Plus (which blocks the ads and makes AB load in the fraction of the normal time).
Firefox:
http://www.mozilla.com/firefox/
AdBlock Plus for Firefox:
https://addons.mozilla.org/firefox/addon/1865
Chris