I have several questions I cannot find answers to.

First question I want to put announcements of happenings in the store and website on the front page of the store. I looked and could not find an answer.
Second question I will have multiple vendors using my site. I would like to setup pages for them in the store and have their banner on the top of their page. How do I set this up?
Third I want to add links to different parts of my Website, Forum, gallery and links/banners page how do I do this?