How to install previously purchased iWork into a new computer?

I have purchased iWork couple months ago. Installed that to my mac book and everything was working well.

Now I got a new mac book pro and I did transfer all other files than applications via migration assistant to this new laptop. What I immediately found out that there is no link to download the iWork package although I have the serial number visible in store account.

Simple question, where do I get the iWork to get it work in my new laptop???