Website has no scrollbars and is off centre

Hi Guys,
I recently designed a website using Flash 8 and am still doing trials, but once I put it up on the server no scrollbars appeared and the centering is way off and its not full screen. Everything seems fine locally on my PC’s browser (Firefox) during testing (using F12) but once up on the server everything changes. I don’t know much about HTML or CSS and I think this might be the problem. How important is CSS in web development and how can I access the file? Any info is greatly appreciated as Im still learning.

website: wwwredarrowds.com (trial version only)

HTML file:
<html xmlns=“http://www.w3.org/1999/xhtml” xml:lang=“en” lang=“en”>
<head>
<meta http-equiv=“Content-Type” content=“text/html; charset=iso-8859-1” />
<title>indexx</title>
</head>
<body bgcolor="#ffffff">
<!–url’s used in the movie–>
<!–text used in the movie–>
<!-- saved from url=(0013)about:internet -->
<object classid=“clsid:d27cdb6e-ae6d-11cf-96b8-444553540000” codebase=“http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0” width=“900” height=“600” id=“indexx” align=“middle”>
<param name=“allowScriptAccess” value=“sameDomain” />
<param name=“movie” value=“indexx.swf” /><param name=“quality” value=“high” /><param name=“bgcolor” value="#ffffff" /><embed src=“indexx.swf” quality=“high” bgcolor="#ffffff" width=“900” height=“600” name=“indexx” align=“middle” allowScriptAccess=“sameDomain” type=“application/x-shockwave-flash” pluginspage=“http://www.macromedia.com/go/getflashplayer” />
</object>
</body>
</html>

Thanks
Zodiac:sc: