There was previously a help section for the submission page but it was removed and replaced with brief in-page guidelines to help make the submission pages more inviting. However, I have actually been thinking of bringing back a new help section, but haven't made a final determination on the design.

As far as the "Getting Started," that's a great idea! I may think I may replace the site features page link on the home page with a "Getting Started" link. For now I don't believe there is a need for General Guidelines, it depends on if you're talking about user guidelines or submission guidelines. For user guidelines, until it becomes an issue I prefer to keep the site as inviting as possible. For submission guidelines I will look into tweaking the in-page help to make it easier to understand.

Thanks for the suggestions!