[Lynne]

This is from a 3.6.8 postbit template:

<tr>
    <td class="alt2" style="padding:0px">
        <!-- user info -->
        <table cellpadding="0" cellspacing="$stylevar[cellpadding]" border="0" width="100%">
        <tr>
            <if condition="$show['avatar']"><td class="alt2"><a href="member.php?$session[sessionurl]u=$post[userid]"><img src="$post[avatarurl]" $post[avwidth] $post[avheight] alt="<phrase 1="$post[username]">$vbphrase[xs_avatar]</phrase>" border="0" /></a></td></if>
            <td nowrap="nowrap">
            
                <div id="postmenu_$post[postid]">
                    <if condition="$show['profile']">
                    <a class="bigusername" href="member.php?$session[sessionurl]u=$post[userid]">$post[musername]</a>
                    $post[onlinestatus]
                    <script type="text/javascript"> vbmenu_register("postmenu_$post[postid]", true); </script>
                    <else />
                    $post[musername]
                    </if>
                </div>
                
                <if condition="$post['usertitle']"><div class="smallfont">$post[usertitle]</div></if>
                <if condition="$post['rank']"><div class="smallfont">$post[rank]</div></if>
                $template_hook[postbit_userinfo_left]
                
            </td>
            <td width="100%">&nbsp;</td>
            <td valign="top" nowrap="nowrap">
                
                <div class="smallfont">
                    <if condition="$post['joindate']"><div>$vbphrase[join_date]: $post[joindate]</div></if>
                    <if condition="$post['field2']"><div>$vbphrase[location_perm]: $post[field2]</div></if>
                    <if condition="$post['age']"><div>$vbphrase[age]: $post[age]</div></if>
                    <div>
                        $vbphrase[posts]: $post[posts]
                    </div>
                    $template_hook[postbit_userinfo_right_after_posts]
                    <if condition="$show['infraction']"><div>$vbphrase[infractions]: $post[warnings]/$post[infractions] ($post[ipoints])</div></if>
                    <if condition="$show['reputation']"><if condition="$show['reppower']">$vbphrase[reppower]: <span id="reppower_$post[postid]_$post[userid]">$post[reppower]</span> </if><div><span id="repdisplay_$post[postid]_$post[userid]">$post[reputationdisplay]</span></div></if>
                    $template_hook[postbit_userinfo_right]
                    <div>$post[icqicon] $post[aimicon] $post[msnicon] $post[yahooicon] $post[skypeicon]</div>
                </div>
                
            </td>
        </tr>
        </table>
        <!-- / user info -->
    </td>
</tr>

See the part in red? I think you can try to add what you want there. You may have to tweak it a bit like change the td tag to center, ie. <td width="100%" align="center">.