How can I transfer Sony Vegas 7 to a different computer?

I orginally had Sony Vegas 7 system on my desktop, but I recently got a laptop, so I was wondering how i can transfer the system without needed to get another, different program. Let me know. Thanks!|||Well, you should have writen down your serial number somewhere, but if not try getting a keygen, just look up "Sony Vegas 7.0 free" on YouTube and you can get it that way :)