I need to be able to run multiple instances of Java on Terminal Server

A vendor updated there portal site which now uses Java (jre 1.5.0). The clients who access this portal are on a Terminal Server which currently won’t allow multiple instances of Java to run.

– The Terminal Server is a Win2K3 Server Standard Edition
– There will be a total of 10 clients using Java at once.

Just wondering if there’s a way to get multiple instances running on the terminal server.