Ok after a long period of time i finally got it. Especially thx to Kier. It's not hard at all but i'm a newb. Here it is.
New Templates
buddy_main
{htmldoctype}
<HTML>
<HEAD><TITLE>Buddy List For $bbuserinfo[username]</TITLE>
$headinclude
</HEAD>
<BODY>
<center>
<table border="0" cellpadding="0" cellspacing="0" width="100"><tr><td bgcolor="{tablebordercolor}">
<table width="100%" cellpadding="2" cellspacing="1" border="0">
<tr bgcolor="{tableheadbgcolor}">
<td align="center" nowrap><FONT face="verdana,arial,helvetica" size="1" color="{tableheadtextcolor}"><B>Buddy List</B></font></td>
</tr>
<TR>
<td align="center" bgcolor="{pagebgcolor}" width="100%">
<table width="100%" border="0" cellpadding="2" cellspacing="0"><tr>
<td width="50%" valign="middle"><hr></td>
<td nowrap valign="middle"> <smallfont><b>Online</b></smallfont> </td>
<td width="50%" valign="middle"><hr></td>
</tr></table>
$onlineusers
<table width="100%" border="0" cellpadding="2" cellspacing="0"><tr>
<td width="50%" valign="middle"><hr></td>
<td nowrap valign="middle"> <smallfont><b>Offline</b></smallfont> </td>
<td width="50%" valign="middle"><hr></td>
</tr></table>
$offlineusers
</td>
</tr>
</table>
</td></tr></table>
</center>
</body>
</html>
buddy
<table width="100%" border="0" cellpadding="2" cellspacing="0"><tr>
<td><IMG SRC="{imagesfolder}/$onoff.gif" BORDER=0></td>
<td nowrap width="100%"><normalfont><a href="member.php?s=$session[sessionhash]&action=getinfo&userid=$buddy[userid]">$buddy[username]</a></normalfont></td>
<td nowrap><normalfont><a href="private.php?s=$session[sessionhash]&action=newmessage&userid=$buddy[userid]">PM</a> <a href="member2.php?s=$session[sessionhash]&action=removelist&userlist=buddy&userid=$buddy[userid]">X</a></normalfont></td>
</tr></table>
Temple Changes
forumhome
Below $header add:
<script language="JavaScript">
function popup(url, window_name, window_width, window_height)
{ settings=
"toolbar=no,location=no,directories=no,"+
"status=no,menubar=no,scrollbars=no,"+
"resizable=yes,width="+window_width+",height="+window_height;
NewWindow=window.open(url,window_name,settings); }
</script>
Find where it says posts in total and beside it add
<br><a href="#"
onclick="popup('buddy.php', 'Window', 160, 200);">Launch Buddy List</a>
Finally download the file below and rename it to buddy.php and upload it in your main folder.
That's all. Enjoy