Dopo una fatica enorme ed averci lavorato fino alle 3 stamattina (abbiate pazienza ma ho iniziato da poco) alla fine sono riuscito ad ottenere la validazione

Con questo file:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<html>
<head>
<META content="text/html; charset=ISO-8859-1" http-equiv=Content-Type>
<script src="mouseover.js" type="text/javascript">
</script>
<script src="subnavig.js" type="text/javascript">
</script>
<script src="gen_subnavig.js" type="text/javascript">
</script>

<style type="text/css"></style>



<title>paginadiprova1</title>

<meta name="description" content="paginadiprova1">

<meta name="keywords" content="paginadiprova1">

</head>


<BODY bgcolor="#FFFFFF" text="#FFFFFF" link="#FFFFFF" vlink="#FFFFFF" alink="#FFFFFF" background="img/base/bg_body.gif">

<script type="text/javascript"><!--
google_ad_client = "ca-pub-9453146271608759";
/* Primobanner */
google_ad_slot = "7538319147";
google_ad_width = 234;
google_ad_height = 60;
//-->
</script>
<script type="text/javascript"
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>


<TABLE id="Table_01" cellpadding=0 cellspacing=0 align="center" style="border:0px; width:781px; height:631px border-right:1px solid #000000; border-left:1px solid #000000; background-image:img/base/bg_table.gif"><TR>

<TD colspan=2 rowspan=4 valign=top>
[img]img/base/ba6.gif[/img]</TD>
<TD colspan=2 valign=top>
[img]img/base/ba51.gif[/img]</TD>


<TD colspan=2 rowspan=7 valign=top>
[img]img/main/mi1_842.jpg[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>


</TR>
<TR>
<TD colspan=2 valign=top>
[img]img/titles/mt.jpg[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>


</TR>
<TR>
<TD colspan=2 valign=top>
[img]img/titles/st.jpg[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
</TR>
<TR>
<TD colspan=2 rowspan=2 valign=top>
[img]img/base/ba52.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
</TR>
<TR>
<TD colspan=2 rowspan=3 valign=top>
[img]img/base/ba53.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
</TR>
<TR>
<TD valign=top>
[img]img/base/ba54.gif[/img]</TD>


<TD align="left" valign="middle" style="background-image: url(img/base/ba102.gif);" width=377 height=42>




<script src="ml.js" type="text/javascript"></script><font face="Arial" size="2" ><a href="#" style="color:FFFFFF" onclick="em_click() "><script type="text/javascript">ml_write();</script>
</a></font>



</TD>
<TD>
[img]img/base/ba206.gif[/img]</TD>
</TR>
<TR>
<TD colspan=2 valign=top>
[img]img/base/ba55.gif[/img]</TD>
<TD>
[img]img/base/ba207.gif[/img]</TD>
</TR>
<TR>
<TD colspan=2 valign=top style="background-image: url(img/base/ba301.gif);" >
<TABLE id="Table_03" width=180 border=0 cellpadding=0 cellspacing=0 style="background-image:img/base/ba200.gif" >
<TR>
<TD valign=top>
[img]img/base/ba56.gif[/img]</TD>
</TR>
<TR>
<TD valign=top style="background-image: url(img/base/ba106.gif);" width=180 height=327 ><TABLE border=0 cellpadding=0 cellspacing=0>

<TR><TD align="center" valign="top">[img]img/base/ba4.gif[/img]</TD></TR>



<TR><TD align="center" valign="top">[img]img/navig/ng1.gif[/img]</TD></TR>
<TR><TD align="center" valign="top">[img]img/navig/ng2.gif[/img]</TD></TR>
<TR><TD align="center" valign="top">[img]img/navig/ng3.gif[/img]</TD></TR>
<TR><TD align="center" valign="top">[img]img/navig/ng4.gif[/img]</TD></TR>
<TR><TD align="center" valign="top">[img]img/navig/ng5.gif[/img]</TD></TR>



<TR><TD align="center" valign="top"><A>[img]img/base/ba5.gif[/img]</A></TD></TR>
</TABLE></TD>
</TR>
<TR>
<TD valign=top>
[img]img/base/ba301.gif[/img]</TD>
</TR>
</TABLE></TD>
<TD colspan=4 valign=top style="background-image: url(img/base/ba302.gif);" >
<TABLE id="Table_02" width=600 border=0 cellpadding=0 cellspacing=0 style="background-image: url(img/base/ba200.gif);">
<TR>
<TD rowspan=3 valign=top>
[img]img/base/ba57.gif[/img]</TD>
<TD valign=top>
[img]img/base/ba58.gif[/img]</TD>
<TD rowspan=3 valign=top>
[img]img/base/ba59.gif[/img]</TD>
</TR>
<TR>
<TD valign=top style="background-image: url(img/base/ba105.gif);" width=556 height=303>


<center><font face=verdana size=2>In costruzione</font></center>



</TD>
</TR>
<TR>
<TD align=center valign=middle style="background-image: url(img/base/ba103.gif);" ></TD>
</TR>
<TR>
<TD colspan=3 valign=top>
[img]img/base/ba302.gif[/img]</TD>
</TR>
</TABLE></TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
</TR>
<TR>
<TD colspan=6 valign=top>
[img]img/base/ba60.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
</TR>
<TR>
<TD valign=top>
[img]img/base/ba61.gif[/img]</TD>




<TD colspan=4 valign=top style="background-image: url(img/base/ba104.gif);" width=736 height=22></TD>
<TD valign=top>
[img]img/base/ba62.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
</TR>
<TR>
<TD>
[img]img/base/ba200.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>
<TD>
[img]img/base/ba200.gif[/img]</TD>

</table>

<TABLE width="782" border="0" cellspacing="0" cellpadding="2" align="center" style="border-right:1px solid #000000; border-left:1px solid #000000; background-image: url(img/base/bg_table.gif);"> <TR>

<TD align="right"><FONT face="Verdana, Arial, Helvetica, sans-serif" size="2" color="#FFFFFF">Site Map</FONT></TD>

</TR>
</TABLE>
</BODY>
</HTML>