2
msuluhan:
My understanding is you don't need to enable the banner. If you added your cliente and its banner you should have the client under the "Advertising Clients" table, and the banner under the "Current Active Banners" table.
Of course, the banner will be sharing displays with the rest of the banners included in the table, so one of the things you might want to do is perhaps delete the banners that are not generating revenue but are taking their share of the impressions made.
Cheers.