Hi its actually very simple, all config is done through Desktop Administrator, you need to open the new web portion of Desktop Admin and go to the CUPS section, then select the version you have of CUPS and enter a CUPS user ID and password, and the IP Address of the CUPS Server. I had to use a dummy CUPS user that i created to enable this, if i tried to use an application user created on CUPS then it did not like it, although i was using V 6.0.4 of CUPS so not sure if there is an issue with this, it works great from the CAD client.