This is a fantastic hack, i'm very very impressed with it, I do however have some questions (i'm sorry if these have already been asked)
First off, I would like to add the ability to change the users commbull details in the control panel, but the text file included in the zip file with the instructions on it is all squshed up, with no line breaks making it very hard to read.
second of all, I'm really interested in knowing how I might be able to edit the colours of the html email so they fit into my site better, how would I do this?
Edit OK, you can ignore the above, i've done it now
Cool script.