Feed back score?

Help me out here. I've bought stuff from 3 different members, and I would like to give them a green check mark. BUT I don't know what to do when it asks for the "url" stuff and I get stumped! Advise please, thanks.

Just click and copy the address from the address bar, then paste it where it asks for the URL...

I open the for sale ad first, copy the address, then open the feedback screen and paste it in, then finish the rest of the info...