1. Install (use any serial)
2. Start the RLM server (rlm.exe) to float the pentalogix.lic license (or set it up as a service)
3. In the Activate License Wizard enter the IP to the RLM server (127.0.0.1 if it's running locally) and press "Generate License"

If you're having trouble check out the "Installing Reprise Network Licenses.pdf"

NJoy!