We use trafficbuilder 4.0, but have had 5 months of hell with them, the boxed version that we bought in the store was defective, we asked their tech support via phone what was up, and they said that they knew there were problems with it. I asked why it made it to the store shelves, they said it was a difference and lack of communication between departments of programmers and marketing.
Well, they said they'd put me on their beta test team (funny, the program was already on the store shelves, how could it still be beta version), anyway, we waited patiently after being told that it would be 2 weeks before we get the next version, 2 weeks turned into 5 months and aproximately 50 emails. Well the end result was that they sent us a new cd with the newer version, we installed it, and it works great, we've never gotten Yahoo to list us via the trafficbuilder software but most of the others have.
So, if you can get your hands on Trafficbuilder 4.0, the version that actually functions, it's worth the money to purchase the beginner model, I dont see much use in the webmaster or pro version whatever they call their 499.00 model.. Just go to the local softwarehouse, and purchase Intelliquis's Web Works.
Their website is at http://www.intelliquis.com