Dawn,
I learned the ropes by following Phred's tutorial on posting pics. It is currently listed in Other, General, where someone is asking how to post pics...I would link you there, but, alas, I can't!

As to etiquette, seems to me most things fly. We choose to put different things in our siggy, or as our avatar. You don't have to, though. At first, until you hit a certain number (and again, I don't remember), you are only a newcomer.

I think if you post this in Other, General, you will get more immediate, and more helpful, responses than mine!

Good luck, and welcome again.
Johanna