I need to transfer lightroom to my new Macbook, and when I called customer support they told me to look on Adobehelp, and that didn't work. HELP!
You can install Lightroom on your Mac machine from this link :
Also, you need to transfer the Lightroom catalog which includes .lrcat and Previews.lrdata files along with the original images to the macbook if you want to have the same catalog.
This tutorial would be helpful for you : http://tv.adobe.com/watch/the-complete-picture-with-julieanne-kost/how-to-migrate-lr-to-an other-computer/