Copyrights

Need the definition of copyright. If a person submitted a logo for a club's correspondence and later leaves or resigns from the club, can he demand that we can not use that logo he created, on future correspondance. The club has been using the logo for approximately 2 years.

I am starting a new business and I want to protect the name of my business. Does this come under "copyright" procedures?

How do I copyright a name (for a business)? And what forms would I need.

I have two friends with whom have manipulated me into swinging a little. I was in an adult entertainment establishment with a different friend recently and upon leaving I picked up a free brochure/magazine. I opened it two days ago and found myself in pictures that I had no idea were used without my permission or without knowledge. I am embarrassed. The ad says I am a porno star, etc. I was used by these so called friends for their profit, without permission, or knowledge. I have lost face. What can I do? Is this defamation of character? I couldn't believe I saw two pictures, one was me on the entire page!

Who owns the contents of a personal letter that I receive? If I choose to publish it, must I obtain permission from the person who sent it to me?