Good to have you with us.
Scroll down from the main page and you will see loads of forum areas.
A General area with sub area regarding non-course stuff (Hardware, general music...)
Below that starts the areas specifically for each course.
They in turn have sub area for questions about the course and area for members to post their recordings of their course work.
As to getting a picture up loaded, well, it's in your "User CP" tab at the top of the page.
Sadly I have a bout a 50% success rate in changing my picture so I'm not sure I'm the guy to ask. LOL.