edit. actually your post is really confusing man. I guess I have the latest tracking code so I should use:
_gaq.push(['_trackPageview', '/mysite/thank-you.html']);
which should be in what format??
like this?
on_sent_ok: "pageTracker._gaq.push(['_trackPageview', '/mysite/thank-you.html']);"
also, once you add that lin eof code, the green pop-up message that lets you know the form was submitted successfully is gone