I bought this game online on my desktop comp, and im additced, I would like to download the game to my laptop. How do i do that, i already paid for the game on this comp, so how do i download to my laptop?

Simply go to LDW's store page on your laptop and download it again. You can use the same code that you got on your other computer. (LDW's nice that way. As long as you do not use the code on a computer that is not in your household, you can put the game on multiple computers.)

You can download the game from here.

You may use your activation code from your purchase on your laptop computer as well.

Alternatively, if you've got a USB memory stick, copy the downloaded installer from the desktop to the memory stick, then plug it in to your laptop and install from there. You won't need to even connect to the Internet in that case. As mentioned, you can use the same unlock code.