Change landing page for referals

Hi

If i didnt understand badly, in "Affiliate Advanced Settings" says that if one of my users want to colaborate with me sending me referals, he just have to place there his site, for example http://www.onesite.com. And in this case all the people that enter to my site from onesite.com is tracked, without necesity of entering the other link ( ?ref...).

So if it's so, and i didnt understand badly, i can suggest to my user to put as a link ( either in the image or in a plain text) the landing page that i really want,

It is this way or i am wrong??

Thanks