Surveyor is not supported for Dreamweaver CS6, it was discontinued before CS6 was released and has not been updated to be compatible with DW CS6, you will need to continue using the previous version of Dreamweaver in order to use Surveyor.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.