I have been experimenting with the BRK for a while. Especially the BlackBerryUserAdmin tools are important for me for easy user management. For this, I have created an asp page that allow to add and remove users to the BES via a web interface, utilizing the BRK.
I have noticed that if the BlackBerryUserAdminClient is not used for a while (roughly 2 days), attempts to add a user fail. The corresponding BES log says something about not being able to retrieve the licenses from the database. However, when I restart the BlackBerryUserAdminService, it all starts working again. This really seems like some timeout issue to me. Have you experienced something similar?
btw. the BRK-Tools, except the user admin tools, are written in perl and the perl code was then translated to C code and then compiled (open any one of the tools in a text editor to see what I mean). So much for stable software...

DOes anyone have a VB front end for use with the BESUSERAdminClient that I can try?