Please refer to this post to download whitehatbox first, then download trafficbotpro from whitehatbox:
https://www.whitehatbox.com/bbs/BBSPost?postid=7617#.XX7dBmkzbIU
You can also download trafficbotpro 2 directly from following address:
http://www.whitehatbox.com/SoftwareUpdate/Download/b4dfa48d-52b2-4aa0-a616-57a1b71bc768.zip