To get the picture on the side of you post (often called an avatar) go to you profile. There is a button for that near the top of the screen when you are logged in. Then you'll see on the left side of your screen a "Forum Profile Information" link. To get your picture up you can either choose one that's there already (Look for the links that say "Actors" and "Musicians"
Or you can post your own picture. To do this you first have to have the picture hosted on a website. I personally use photobucket.com. It's pretty easy to use and it's free (I LIKE free...) Once you have the picture hosted there, you'll see three lines below it. One is the URL. Just copy the URL and paste it where it says "I have my own pic" under your profile.
That's also how you post pics in the forum. You can either copy the line (remember I said there were three under your pic on photobucket) that says "IMG" at the beginning and paste it into the forum or you cany copy the line that is the URL and past in after clicking the insert image button at the top of the reply area (where it says "add BBC tags: it's the second from the left on the bottom row) When you click that it puts "
" and you paste your URL in the middle.
Sorry so long - hope it helps!