No hacks needet!

Open Postbit Template:
change:
Code:
<normalfont><b>$post[username]</b></normalfont>
to:
Code:
<a href="member.php?s=$session[sessionhash]&action=getinfo&userid=$post[userid]" target="_blank" class="name" id="name"><normalfont><b>$post[username]</b></normalfont></a>
Thats for the usernames.
The clickable avatars must have the same Link as the link to the usernames.
Just replace:
with:
Code:
<a href="member.php?s=$session[sessionhash]&action=getinfo&userid=$post[userid]" target="_blank" class="name" id="name">$post[avatar]</a>
Not testet, but should work.