When an advertiser purchases an advert via your website, you will receive an email notification ( make sure you have your correct email setup in WordPress and can receive emails ok).

If you visit the “Advertiser Status” link in the plugin menu, you will see the new advertiser listed there – you can then accept or decline the advertiser. Once you accept, their ad campaign goes live on your site. When you approve, the will also receive an email saying they have been accepted which contains a link for them to login with their details.