You'll want to use the destination url the same as you would any other ad in your campaign (i.e. add tracking IDs or however you track your text based ads).
pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5193510673100289&dt=1118333200570&lmt=1094745676&format=468x60_as&output=html&channel=6632907970&url=http%3A%2F%2Fwww.flu....
Do you see it there? "format=468x60"! I wonder if this means that this content-provider has said they'll display 468x60 banners! I just designed an ad and hope my most productive content-provider picks it up. It didn't happen *instantly* but fingers crossed. I upped my bid so mine is the first of the two text-ads now appearing there.
(A big tip: track sales to the "url=" field inside the referral URL, and eliminate junk content-providers via the site-exclusion tool. Half my clicks were coming from a site that never produced any sales.)