İlk önce kendinize göre orta kavisli solsag gif hazırlayınız
İlave css yazılım bölümüne (giflerin yolunu ben burda kafadan verdimsiz temanıza atıp doğru url veriniz.Aksi takdir çıkmayacaktır)

.sol {
 background-image: url(resimyolu/sol.gif);
 background-repeat: no-repeat;
 height: 37px;
}
.sag {
 background-image: url(resimyolu/sag.gif);
 background-repeat: no-repeat;
 height: 37px;
}
forumhome_forumbit_level1_nopost tempini tamamıyle alttaki kodlarla değiştirin(altı çizikbold yazılara dikkat edingif yollarını kendime göre atadım siz kendinize göre atarsınız.)

<br />
<table width="$stylevar[outertablewidth]" style="background-image:url(tema/ort.gif)" border="0" cellpadding="0" cellspacing="0">
  <tr>
    <td width="14" height="35" align="left" valign="top"><img src="tema/sol.gif" alt=" " border="0" /></td>
    <td width="$stylevar[outertablewidth]" style="background-image:url(tema/orta.gif)" valign="middle">
   <a style="float:$stylevar[right]" href="#top" onclick="return toggle_collapse('forumbit_$forumid')"><img id="collapseimg_forumbit_$forumid" src="$stylevar[imgdir_button]/collapse_tcat{$collapseimg_forumid}.gif" alt="" border="0" /></a>
   <div align="center">
   <a href="forumdisplay.php?$session[sessionurl]f=$forum[forumid]"><b><font color="#FFFFFF">$forum[title]</font></b></a></div>
   <if condition="$show['forumdescription']"><div align="center" class="smallfont"><font color="#FFFFFF">$forum[description]</font></div></if>
 </td>
     <td width="14" height="35" align="right" valign="top"><img src="tema/sag.gif" alt=" " border="0" /></td>
  </tr>
</table>
<table class="tborder" cellpadding="6" cellspacing="1" border="0" width="$stylevar[outertablewidth]%" align="center">
<if condition="$childforumbits">
<tbody id="collapseobj_forumbit_$forumid" style="{$collapseobj_forumid}">
<tr align="center">
   <td class="thead" width="5%">&nbsp;</td>
   <td class="thead" width="45%" align="$stylevar[left]">$vbphrase[forum]</td>
          <td class="thead" width="20%">$vbphrase[last_post]</td>
          <td class="thead" width="10%">$vbphrase[threads]</td>
   <td class="thead" width="10%">$vbphrase[posts]</td>
   <if condition="$vboptions[showmoderatorcolumn]">
   <td class="thead" width="10%">$vbphrase[moderator]</td>
   </if>
 </tr>
$childforumbits
</tbody>
</if>
</table>
FORUMHOME tempinde bulun;
<!-- guest welcome message -->
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
<tr>
<td class="tcat"><phrase 1="$vboptions[bbtitle]">$vbphrase[welcome_to_the_x]</phrase></td>
</tr>
Değiştirin (yine resim urlelerine dikkat edinkendinize göre editleyiniz) 

<table width="$stylevar[outertablewidth]" style="background-image:url(tema/ort.gif)" border="0" cellpadding="0" cellspacing="0">
  <tr>
    <td align="left" valign="top"><img src="tema/sol.gif" alt=" " border="0" /></td>
 <td align="center" width="$stylevar[outertablewidth]" style="background-image:url(tema/orta.gif)" valign="middle"><strong><font color="#FFFFFF"><phrase 1="$vboptions[bbtitle]">$vbphrase[welcome_to_the_x]</font></phrase></td>
<td align="right" valign="top"><img src="tema/sag.gif" alt=" " border="0" /></td>