I also had to install the framework rather than the authoring tool. I would say that it's good to have a basic understanding of how HTML and CSS work, since it means you at least grasp the concept of having different source files.

I'm also a newbie, and though the learning curve can feel steep I'm actually glad I was forced to use the framework. I still don't know how to do a lot with it, but it's forcing me to gain some valuable skills I wouldn't otherwise have.

And having a supportive community helps! There are some truly helpful people here.