unsatisfied with banner-trades

[pornoTGB]

I have signed up at two banner trading services..
Porn-Hitz.com - right now I have displayed 1433 other people's banners on my site.. but mine has not been loaded on any other site yet... does anyone have experience with this provider? I'm very close to removing the code...
hornytraffic.com atleast has shown my banner on other sites 122 times (?) Thats still not even close to what I have showed on my site! - does anybody have a good experience with this site?
I have did not get a reply to my emails eider.. might have ended up in the spam-folder..

if you do know an excelent and fair banner trading provider please tell me.. there are so many of them out there and I'm loosing my trust in them..

Thanks for any advice