GreaseMonkey wouldn't install on my desktop machine (x86 linux firefox 1.03) but I added the hostnames from post #8 of http://www.flyertalk.com/forum/showthread.php?p=4320553 to my already-existing ....... extension and now all of the ads (top horizontal, side vertical, in between posts, and inside posts) are gone.

Perhaps whoever the ad-meisters are should consider if the click rate is going down because more and more users are getting frustrated by ads and installing effective blockers that kill all of them. I had a pretty good tolerance for the banner ads and maybe even the ads between posts, but today's "enhancement" led me to drastic action and just made sure I'll never see another ad on FT again on any machine I have admin control over.