And I'm telling you how to "install" it. Go to your Account > Refer a Friend. Turn on flash thing if you don't see your link and then press big yellow button. That's all.
Don't really get, what are you saying, but I think you need to find where that link is? Or how you can see that?
If I properly can remember, you need to be sub, after you can setup your link in My Account and Referal Link section.