Hello,

Here are some options for technical explanations:

- Please try the help section of this site. 
- Also you can check the documentation at http://survey.codeplex.com 
- Check the descriptions in the web.config file in the sites root directory
- Check the source code at the codeplex site for a directory called: _CSharp_Samples, it contains one document describing how to add/ create your own answertypes

If you need help on the regular use of the survey tool's administration there are no formal helpfiles yet (we're working on it) but you can always ask your questions through the forums of this site.