Extract user avatar on threadbit

[rookiyong]

I need some help on whether this would be possible. Wayne Luke suggested that I ask here as it may require more than template edits. Would appreciate any help, thanks :)

I actually want to display a thumbnail of the thread poster's avatar in forumdisplay for every thread. I have done the following but just short of extracting the avatar based on the postuserid.

Edited in threadbit template:

Find:

<if condition="$show['threadicons']">
<td class="alt2" align="center" valign="middle">


Added below:

<!-- added thumb -->
<if condition="$display_avatarthumb"> (this was done using plugin and its ok)

<if condition="to check is user has avatar based on postuserid">
<img src="extract user's avatar" border="0" />

<else />
<img src="$stylevar[imgdir_misc]/noavatar.jpg" border="0" />
</if>
<else />
<!-- finish added thumb -->