Best PopUp/PopUnder network for file sharing site

i do own a file sharing/hosting site like tusfiles and others.
I do currently have 15K visitor and like 25K pageviews.
and i have 2 download pages, so user have to visit both the pages.
So i am using popup and popunder on both pages,
Like 2 pop up ad per page.

Problem is popads counts only 2k impression, but rates good. But edomz is good , but rate fixed $0.5.

Can anyone suggest me which network will count all visitor like edomz

Poster :