Hi. When i click on the "advertise on this site" link it brings me to my old website that i don't want people to put adds on, and i don't want Adsense to spider crawl or whatever they do to that website, i want them to do it to my new website. So how would i go about changing what website is associated with my Adsense account? Thanks.
You can remove the option entirely by going to the Account Settings tab. I haven't seen a place that will allow you to actually change the site associated with your account.