I had set up an RT account back in May, though I hadn't used it until about a month ago. I ran 3 campaigns I did get a little bit of traffic and a couple of referrals. Personally, I really Love IBO's newest platform Kris Clicks. I've gotten a lot of traffic to all my sites daily. Have you tried Kris Clicks? Here is the link to check it out if you haven't http://www.krisclicks.com/?ref=12764 upon sign up you get 100 free credits.
Hope this helps,