Be Sure That You Have the Most Updated Version of GNUPG... Rated 5 out of 5 stars
Previously I stated that Enigmail doesn't work at all as an add-in with T'bird 2.0.X. A premature statement on my part: Enigmail works fine as long as you have installed a current version of GNUPG (that would be version 1.4.7 or later) I was originally using GNU 1.4.6, which would not generate a keypair with Engmail 0.95.6. Once you have the updated version of GNUPG, Enigmail will work just fine with T'bird 2.0.X.
My sincere apologies for jumping the gun the first time.