I didn't have the Internet or E-mail. So I skipped the E-mail thing.
You apparently have access to email someplace, or you couldn't have made a forum account!

To activate the game on a computer that is not connected to the internet, follow these steps:
1) Start the game; you will get a prompt for your serial and email. Provide them and continue.
2) It will fail to activate and ask if you'd like to activate by email. Click Yes.
3) Copy the subject line and big block of letters into a text file, or into your email program, and save it off to portable media (CDR, USB drive, floppy, etc).
4) Take it to a web-connected PC and send an email to activate@stardock.com with that subject line and content.
5) You should receive a reply with a file and some instructions; take the file back to the non-connected PC and you should be set to go.