After you get 50 posts you are allowed to have an avatar. After you get 50 posts you can go into your User CP and specify one. BTW, posts do noy count in the Community section. Welcome to TechIMO!!!
To get an Avatar you need to have 50 posts. Posts in the Community forum do not count towards this 50. Once you get 51 you can go into your contol panel (CP) and upload a pic.
Quote:
Use custom avatar
Note: the maximum size of your custom image is 64 by 64 pixels or 10000 bytes (whichever is smaller).