The same program
The regular and the demo version of Page 2 Stage are the same program. You unlock the program by entering your name and password. But for both the regular program and the demo, you download and run the same program.

No demo needed
The program is free. But you must enter the username and password for the free version to take it out of demo mode. Make sure you do this.

Uninstall
Page 2 Stage will include an icon to uninstall the demo. If you choose to uninstall, it will delete everything the install program put on your computer.