I got PCMover for free from pesktop.com

The following are instructions provided with the downloaded file:

- Unpack and install pre-patched setup.

* Manual replacements will corrupt the PcMover service application and it will not work correctly.

- After install is done, do not launch software yet.

- Merge the provided reg entry according to your system.

* You must firewall the application to prevent online license check.

- Open program, use any name, email and serial number, just click Next to proceed.

* Tested by installing on a desktop and laptop computer connected on the same network and functions have been tested on the same network cable between two different computers without problems.

So, I did all of that and got stuck at the serial number thing, don't know what to put there.

What should I do?