Start from here
http://4js.com/online_documentation/fjs-gas-manual-html/#gas-topics/c_gas_architecture_006.htmlFollow the link at the bottom of the page, and then onto
http://4js.com/online_documentation/fjs-gas-manual-html/#gas-topics/c_gas_fastcgi_install_001.htmlAlso you said "and changed the as.xcf file to add my webservices." ... just make sure you are using GROUP concept rather than adding individually every one of your webservices into your as.xcf.
And as a tip that you have everything working, with httpdispatch the following URL
http://localhost:6394/ws/r/demo/Calculator?WSDL returns the WSDL for one of the demo Web Services, with a Web Server the same test will be http(s)://
server/
alias/ws/r/demo/Calculator?WSDL
Reuben