adding adsense ad after first post only

[CarterMarkham]

I am having trouble with this, can someone help me. So far I can get it at the header and footer but thats it, I would perfer it after the first post for all usergroups.

Thanks CM

[SEOvB]

if using the vbulletin version 3.7 or greater, there is a ad location template that you can edit in the style manager