[Xitami] Error on .shtml pages!

[WhiteShepherd]

I'm running Xitami 2.4.9d  (I've tried newer some versions but they 
crash when displaying a perl CGI page that is too large, don't know if 
that is fixed yet?).  Anyways I run Xitami and Apache2 on the same 
machine seperated by hosting IP.  Static websites that get real heavy 
traffic I put on Xitami as the server is under a heavy load.  The 
problem is some of these sites have .shtml files.  When running under 
Xitami, when it hits these .shtml files it just gives an error page:


  Internal error: your request was unsuccessful
  Cannot create CGI process - program not found


However these same .shtml files run fine under Apache2.  Any idea why 
this can't run under Xitami?  I will post one of these .shtml files 
below for reference. Thanks for any help!


"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>
<META http-equiv="PICS-Label" content='(PICS-1.1 
"http://www.classify.org/safesurf/" l gen true for 
"http://www.ayame.furtopia.org" r (SS~~000 9 SS~~001 2 SS~~002 5 SS~~003 
5 SS~~004 5 SS~~005 1 SS~~009 5))' />
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name="author" content="Ayame Emaya" />
<meta http-equiv="pics-label" content='(pics-1.1 
"http://www.icra.org/ratingsv02.html" comment "ICRAonline EN v2.0" l gen 
true for "http://www.ayame.furtopia.org" r (na 1 nb 1 nc 1 nd 1 ne 1 nf 
1 ng 1 nh 1 ni 1 vz 1 la 1 lc 1 oh 1 cz 1) 
"http://www.rsac.org/ratingsv01.html" l gen true for 
"http://www.ayame.furtopia.org" r (n 4 s 4 v 0 l 4))' />
<head>
<title>Ayame</title>

<link rel="stylesheet" type="text/css"
href="./styles/default.css" / title="default">

<link rel="alternate stylesheet"
type="text/css" href="./styles/layout3.css" / title="other">

<link rel="alternate stylesheet"
type="text/css" href="./styles/easy.css" / title="easy">

<link rel="alternate stylesheet"
type="text/css" href="./styles/jordan.css" / title="jordan">

<link rel="alternate stylesheet"
type="text/css" href="./styles/monotone.css" / title="mono">

<style type="text/css" media="screen">
<!--
@import url("/styles/image.css");
-->
</style>

<!-- Place all styles above this note. Thank you ALA.-->   
   
<script type="text/javascript" src="/scripts/styleswitcher.js"></script>


</head>

<body>

<div class="content">
  <!--#include virtual="/ssi/ssiHeader.txt" -->
</div>

<div class="content">
 <!--#include virtual="/ssi/ssiIndex.txt" -->
</div>

<div class="content">
  <!--#include virtual="/ssi/ssiNews.txt" -->
</div>

<div class="content">
    <!--#include virtual="/ssi/ssiFooter.txt" -->
</div>

<div id="navAlpha">
    <!--#include virtual="/ssi/ssiChooseStyle.txt" -->
   
</div>

<div id="navBeta">
    <!--#include virtual="/ssi/ssiLinks.txt" -->
</div>

<!-- BlueRobot was here. -->
<!-- So was Ayame. Thanks BlueRobot. -->

</body>
</html>