this is what i found in faq:
Can't register because the computer you're installing on isn't connected to the Internet?
When the program tells you that you need to register, it will display your "installation number". Write that number down and using a computer that's on-line, visit http:/www.pishtech.com/register_rwffte.php. Enter the installation number, your serial number and e-mail address and the registration system will send you the activation code for your off-line computer.
all the best,