Configuring a scanner on Terminal Server

I need to install an HP scanner on a WinTerm thin client at a branch office. The WinTerm attaches to the main LAN thru a Microsoft NT Terminal Server with Citrix Metaframe 1.8. I installed the scanner software on the server but I don’t know how to redirect it to the scanner attached to the WinTerm in the branch office. Can anyone tell me how to do this?