I am not able to get ICM to add or delete printers to Vista SP1 workstations. My workstations are running iPrint client 5.40 (and some running 5.32) and my server is NW 6.5 SP8 with the latest iPrint patches.
The users can manually add the printers via the iPrint web page and can manually delete printers from the control panel, but that is not optimum for us...