Regarding newsletters with version 2.0, I would like the 'From' address to be different than the default address used for all other mailings. I looked but couldn't figure out how to do that. Any input?

Also, when mass mailing a newsletter, if I click on 'unsubscribe' next to one of the names that had been mailed, I get an error saying that name was not found; however, if the unsubscribe link is clicked on from within the mailing (the tag line at the bottom of each letter), it does work. Any suggestions on that?