Hello!
First and foremost, this project is GREAT and MUCH NEEDED!!
Just wanted to let you know, however, that i've discovered that the popup chat window for the "default" theme doesn't open big enough, resulting in the user (and chat operator) having to drag open the window to the right. I think Safari is the only browser (between Safari, FF, and IE) that shows the whole window correctly.
Thanks, and keep up the great work!!!