Can anti spam client run in windows 7 and thunderbird 3?
On the product page it says that it works with XP and Outlook. No windows 7, no thunderbird. :-\
Yes 
Maybe some know a beta product of the program has bean updated 
Yes it works with Thunderbird, but please see the FAQ for further guidance. (Have run it myself)
You need to take careful note of the ‘before you install’ or wait for the next version.
Re Win 7 please try it! Then I can update the faq.
Best wishes
Mouse