Today I installed live help by Crafty Syntax. We are looking into this program to use at work instead of paying our licensing fees for our current solotuion. It is completly open source which is really nice and only took me about 5 minutes to install. You can try it out if I am online by clickin on the Live Help icon on the right hand side and if you are interested in trying it out their website is http://www.craftysyntax.com