Hello, and thank you to everyone who contributes to this forum. I'm having a similar issue as posted above. I'm replacing an image with a swf file. I inserted the swf into the template index.php and this may be adding extra code that's not needed. I'm at the beginning level of development so I'm not exactly sure what I should be seeing. The url for the swf is working fine, I know the problem is in the coding. Any help would be so greatly appreciated.
my index.php:<?php
defined( '_JEXEC' ) or die( 'Restricted access' );
JPlugin::loadLanguage( 'tpl_SG1' );
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $this->language; ?>" lang="<?php echo $this->language; ?>" >
<head>
<jdoc:include type="head" />
<link rel="stylesheet" href="templates/system/css/system.css" type="text/css" />
<link rel="stylesheet" href="templates/<?php echo $this->template ?>/css/template.css" type="text/css" />
<!--[if lte IE 6]>
<link rel="stylesheet" href="templates/<?php echo $this->template ?>/css/ie7.css" type="text/css" />
<![endif]-->
<script src="../../../Scripts/AC_RunActiveContent.js" type="text/javascript"></script>
</head>
<body class="body_bg">
<div id="page_bg">
<div id="logo">
<a href="index.php"><?php echo $mainframe->getCfg('sitename') ;?></a>
</div>
<div id="header_bg">
<div id="header_lbg">
<div id="header_rbg">
<div id="header_main">
<script type="text/javascript">
AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0','width','485','height','268','title','banner_slideshow','src','http://localhost/~Robichaux/dscej/images/banners/banner_slideshow','quality','high','pluginspage','http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash','movie','http://localhost/~Robichaux/dscej/images/banners/banner_slideshow' ); //end AC code
</script><noscript><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0" width="485" height="268" title="banner_slideshow">
<param name="movie" value="http://localhost/~Robichaux/dscej/images/banners/banner_slideshow.swf" />
<param name="quality" value="high" />
<embed src="http://localhost/~Robichaux/dscej/images/banners/banner_slideshow.swf" quality="high" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="485" height="268"></embed>
</object></noscript>
<div class="hleft"></div>
<div class="hright">
<?php if($this->countModules('user1') and $this->countModules('user2') and JRequest::getCmd('layout') != 'form') : ?>
<div>
<div class="hwr-left">
<jdoc:include type="modules" name="user1" style="rounded" />
</div>
<div class="hwr-right">
<jdoc:include type="modules" name="user2" style="rounded" />
</div>
<div class="clr"></div>
</div>
<?php endif; ?>
<?php if($this->countModules('user1') and $this->countModules('user2') and JRequest::getCmd('layout') != 'form') : ?>
<div id="newsflash">
<?php else: ?>
<div id="newsflash" style="height: 246px;">
<?php endif; ?>
<jdoc:include type="modules" name="top" style="rounded" />
</div>
</div>
<div class="clr"></div>
</div>
</div>
</div>
</div>
<div class="pill_m">
<div id="pillmenu">
<jdoc:include type="modules" name="user3" />
</div>
</div>
<!--center start-->
<div class="center">
<div id="wrapper">
<div id="content">
<?php if($this->countModules('left') and JRequest::getCmd('layout') != 'form') : ?>
<div id="leftcolumn">
<jdoc:include type="modules" name="left" style="rounded" />
</div>
<?php endif; ?>
<?php if($this->countModules('right') and JRequest::getCmd('layout') != 'form') : ?>
<div id="maincolumn">
<!--pathway start-->
<div class="cpathway">
<div class="cpleft">
<jdoc:include type="module" name="breadcrumbs" />
</div>
</div>
<!--pathway end-->
<?php else: ?>
<div id="maincolumn_full">
<!--pathway start-->
<div class="cpathway">
<div class="cpleft">
<jdoc:include type="module" name="breadcrumbs" />
</div>
</div>
<!--pathway end-->
<?php endif; ?>
<div class="nopad">
<jdoc:include type="message" />
<?php if($this->params->get('showComponent')) : ?>
<jdoc:include type="component" />
<?php endif; ?>
</div>
</div>
<?php if($this->countModules('right') and JRequest::getCmd('layout') != 'form') : ?>
<div id="rightcolumn" style="float:right;">
<jdoc:include type="modules" name="right" style="rounded" />
</div>
<?php endif; ?>
<div class="clr"></div>
</div>
</div>
</div>
<!--center end-->
<!--footer start-->
<div id="footer">
<div id="sgf">
<div>
<div style="text-align: center; padding: 10px 0 0;">
<?php $sg = ''; include "templates.php"; ?>
</div>
<div style=" padding: 5px 0; text-align: center; color: #fff;">
Valid <a style="color: #fff;" href="http://validator.w3.org/check/referer">XHTML</a> and <a style="color: #fff;" href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a>.
</div>
</div>
</div>
</div>
<!--footer end-->
</div>
<jdoc:include type="modules" name="debug" />
</body>
</html>
Thank you in advance!
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but I don't want to do so. P.S.:I have installed flash modules into joomla. Can you please let me know how to replace header1.jpg (which is the name of the picture) to let say header1.swf?
I made it like this by editing index.php:
trying to understand what is useful to me in all of the code mash above. 
Obvioulsy I need a workaround. Any smart people ready for this? Many thanks!! 
