Changes to the hack instructions:
FIND:
$username = "<b><i><font color=red>$loggedin[username]</font></i></b>"; // Color for Admin
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/greenperson.gif> <b><i><font color=red>$loggedin[username]</font></i></b>"; // Color for Admin
FIND:
$username = "<b><font color=darkred>$loggedin[username]</font></b>"; // Color for Supermod
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/redperson.gif> <b><font color=darkred>$loggedin[username]</font></b>"; // Color for Supermod
FIND:
$username = "<b><font color=green>$loggedin[username]</font></b>"; // Color for Mod
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/yellowperson.gif> <b><font color=green>$loggedin[username]</font></b>"; // Color for Mod
FIND:
$username = "<font color=blue>$loggedin[username]</font>"; // Color for normal Member or "Highlight Admin" is turned of
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/greyperson.gif> <font color=blue>$loggedin[username]</font>"; // Color for normal Member or "Highlight Admin" is turned of
FIND:
$username = "<b><i><font color=red>$loggedin[username]</font></i></b>"; // Color for Admin
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/greenperson.gif> <b><i><font color=red>$loggedin[username]</font></i></b>"; // Color for Admin
FIND:
$username = "<b><font color=darkred>$loggedin[username]</font></b>"; // Color for Supermod
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/redperson.gif> <b><font color=darkred>$loggedin[username]</font></b>"; // Color for Supermod
FIND:
$username = "<b><font color=green>$loggedin[username]</font></b>"; // Color for Mod
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/yellowperson.gif> <b><font color=green>$loggedin[username]</font></b>"; // Color for Mod
FIND:
$username = "<font color=blue>$loggedin[username]</font>"; // Color for normal Member or "Highlight Admin" is turned of
REPLACE WITH:
$username = "<img src=http://www.yoursite.com/forums/images/greyperson.gif> <font color=blue>$loggedin[username]</font>"; // Color for normal Member or "Highlight Admin" is turned of
I hope that helps