Because I get a lot of questions several times I have decided to create a Google Group  (http://groups.google.com/group/ajaxpro ) to have something like a forum available for all Ajax.NET developers. Feel free to join this group  and give feedback about using Ajax.NET Professional. The current version of the library is available at http://ajaxpro.schwarz-interactive.de/ .
Updated: Sorry, I used the German Google Groups link. Now, the group should appear in English!