Filters and Org Views - Only Workstations

I am trying to figure out the correct filters and Org View to allow the Help Desk to work with new and existing workstations, but not servers.

So far, I've given them access to the canned Windows Workstation filter and used that same query to populate an Org View.  The problem is that they are not seeing new machines - machines created duing the imaging process using WinPe -- in other words, new minint-XXXXXXX machines.

Any help would be greatly appreciated.

Thanks,

S.....