Ads in threads, but under Signature line

[northvanmike]

we use the Ad Selector in vBulletin ( http://members.shaw.ca/northvanmike/...adselector.JPG ) for paid ads only, and what we'd like to do is place the ad down below the Signature line. like this:

http://members.shaw.ca/northvanmike/.../adsigarea.JPG

as you can see the Ad Selector does not give the option to place it where we want, it just goes in the post to the far right.

thanks for help in advance.