To get $$ adverts first you need BAPs. When you have BAPs in short time on your account should to be directed Paid adverts.
The more BAPs you accumulate, the larger value ads your account will gain.
I think this is the most actual table:


You get BAPs adverts everyday but there are other ways to get more.

How to get more BAPs you can read in OP and in FAQ here: http://www.paidverts.com/faq/3.html