Stick with it Brad you will get the hang of using the webassist tools, the main thing with CSS Sculptor is to get the page layout to how you want it and save it as a preset that way you dont have to keep going over all the other steps you have done which can be quite a pain with more complex layouts.
With site assist you will need the page generated by CSS Sculptor or a dreamweaver template that you first have to set up in the layout manager then use site assist.
Hope you get the hang of it soon.