Documentation for all WebAssist products can be found on the support page of our website support. Choose the product you are working with to see the available resources.
You should be able to load the built-in help documentation without any issues. It sounds like there may be an issue with your Flash Player settings in whatever browser you are using. On the support page for Site Sculptor there is a link to Built-in Help on the right hand side. This loads the same documentation and may work from there. If not, i'd suggest looking into your Flash Player settings or trying a different browser.