Take heed to the advice offered to your question. The intro page (sign-in) tells you the basics. The Learning Center, Help Button (top right of page), Forums, and even Hubs, are vauable resources and tools to review on an ongoing basis.
For example, if you find a hub that is extremely resourceful for your hubbing needs, bookmark it, so you can easily refer to it any time. Forums have a variety of topics, and also have veteran and Elite hubbers who are more than willing to help navigate you through your new hub life. The Learning Center is an excellant resource for how-to's, and HubPages rules and guidelines. Like The Learning Center, The Help Button provides additional information and is formatted in a question/answer format.
Good Luck, and welcome to Hubpages!