I am really annoyed and cant find my serial number can someone please tell me

Log into your account here:
http://www.reallusion.com/login.asp

It should take you to your Welcome page.
Scroll down and you will see all of your Reallusion purchases which required registration. There is a column called "Serial Number" and a clickable link for each piece of software to "Resend" the serial number to your email address.

- Keith