I'm still getting flagged as a spammer as well (boo hoo).
Phil: Here's where I'm posting from today: 71.121.16.214
However, I appear to trigger the spam filter whenever I use either my website in the website box:
http://astrogeek.wordpress.com, or my usual email address: hudson double-u jay at yahoo dot com. If I fill in my alternate email address double-u jay hudson at gmail dot com, and leave the 'website' section a blank, it lets me post.
I'm using Firefox 2.0.0.6 on a Windows XP Pro box which has had all of its shots.
Sorry for all of the hassle, Phil, you sound like you're frustrated by the situation, and I'm sure we all appreciate how hard you are working on resolving it.