What is the site you are trying to create the site map for so I can test this on my end? Have you tried running surveyor on any other live sites besides the one that is causing an issue?
Try modifying your security settings to allow the Dreamweaver Configuration folder. This post explains how to do this:
You can also access the help documents by going to www.webassist.com and clicking on support. Select Support Resources for the product you need and the online help link. This will get you to the same help document, but you will have to find which section you were on.