System: NetWare 6.5 sp 6

I was asked to configure a new laptop in this environment. The blasted thing came in with Vista.

I downloaded and installed the 5.12 iprint client, then rebooted the laptop.
When I go to the iprint page, it tells me that the iprint client isn't installed and asks if I want to install it.

Do I need to upgrade the nipp files on the server before it'll stop telling me that?