How to filter messages in Thunderbird from body content

[Scott Edwards]

Apparently my build of Thunderbird does not offer a way to filter
messages based on the body content.  I've searched around, and I find
a lot of white noise.  Is anyone using a plugin or addon to do this in
Thunderbird? Or is there a configuration setting I can change some
place to allow this?

I'm using Thunderbird version 2.0.0.14 (20080421).

Thanks so much!


Scott