On the forum page - On the upper right hand corner below "Your forum leaders are BinkyBunny", click on "My Profile". That will take you to your profile area. Then in the profile area, towards the bottom, click on "Edit Profile" From there you can upload you're avatar, and profile pic, enter info, delete email notification if so desired (though your actual email address is hidden)
Note avatars and profile pics will automatically be sized.
Avatar is what will show on the forum. Profile pic is only seen when people click on your member name.
Good luck! Let me know if you have any problems.