fixed!!!
this guy edited the serendipity_config_local.inc to the following content.
what a wan*er, so simple and too naive...
<html>
<head>
<!--
div.Section1
{page:Section1;}
span.SpellE
{}
body {
background-color: #000000;
}
.style2 {
font-size: 36px;
color: #FF0000;
}
.style7 {font-size: 36px; color: #FFFFFF; }
.style5 { font-size: 24px;
color: #00FF00;
}
.style6 {font-size: 18px}
.style8 { font-size: 24px;
color: #FFFFFF;
font-weight: bold;
}
.style10 {
color: #FFFFFF;
font-size: 18px;
}
.style11 {font-size: 36px; color: #FFFFFF; font-weight: bold; }
.style12 {color: #FFFFFF}
.style13 {
font-size: 36px;
color: #00FF00;
}
-->
</style>
<div id="Layer1" style="position:absolute; left:0; top:0; width:1000; height:1000;
z-index:1; background-color: #000000; layer-background-color: #ccccc; border: 1px none #000000">
<strong>
</span></strong></p>
<DIV align=center>
<p><B><BR>
<STYLE>BODY {
SCROLLBAR-ARROW-COLOR: red; SCROLLBAR-BASE-COLOR: black
}
</style>
<title>HACKED BY VEZiR.04</title><p><font color="#000000">
<div id="Layer1" style="position:absolute; left:0; top:0; width:1000; height:1000;
z-index:1; background-color: #000000; layer-background-color: #ccccc; border: 1px none #000000">
<p align="center"><font face ="Showcard Gothic" style="font-size: 125pt"><font color="white">HackeD
<p align="center"><font face ="Showcard Gothic" style="font-size: 25pt"><font color="white">Your System Owned By
<p align="center"><font face ="Showcard Gothic" style="font-size: 35pt"><font color="white">Vezir.04~McPislick~One_Dream
<p align="center"><font face ="Showcard Gothic" style="font-size: 15pt"><font color="white">
vezir.04@gmail.com
<p align="center"><font face ="Showcard Gothic" style="font-size: 15pt"><font color="white">
www.turkishrevenge.org
<!--VEZiR.04-->
<noscript>
</b></p>
</font></td>
</tr>
<tr align="center">
</tr>
</table>
</body>
</html>