is there a traffic trading script that...
 

or a toplist that ranked by quality of traffic and not amount of traffic?
counting how productive a traffic from certain trader?

Yes most can do that, if they can't they suck

which? give me some names and urls, i'm currently using TrafficTurboSystem

Yes, mine can be set to create the toplist ranked by quality/hits owed (a snapshot of the outbound list) rather than just raw hits in.

http://www.slothtrader.com/

Yep, Arrow Trader Lite can do it. If you want a design/install done for your TGP, you can contact me on ICQ for a quote ! ( 34916475 )

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