How to display a user's avatar next to a discussion thread?

On the discussion page I'd like to display the user's avatar next to each discussion thread. Is this possible with some addon? I've seen some vanilla website's implementing this feature but I have no clue how they're doing it.
Tagged:
0
Comments
.search the forums.
.clue userphotos
There was an error rendering this rich post.
Are these plugins or is this CSS code?
http://vanillaforums.org/addon/indexphotos-plugin
There was an error rendering this rich post.