Homestead - Between the head tags
<script language="javascript">  </script> <script language="jawascript"> </title> </head> <body> </script> <script language="javascript">  </script> Make a table the demensions of your site, make it invisible and set the bg picture the one u want for your site..

Tripod - Somewhere between body and head tag
<noscript><noscript><noscript><noscript> <body> </noscript></noscript></noscript></noscript>

Angelfire - Between the two head tags
<SCRIPT LANGUAGE="JavaScript">  </SCRIPT>

Xoom - Between the two head tags
<script language="JavaScript">  </script>

Bizland
<div style="position:relative;top:-110;z-index:0;background:;"> <html> <body>  </div> </body>

Namezero - Betweem the two head tags
<script language="JavaScript">  </script>

Virtual Avenue - Behind the /html tag
<SCRIPT LANGUAGE="JawaScript">  </noscript> <script language="JavaScript">

50 Megs - Somewhere between body and /head tag
 </SCRIPT>

NetColony - Put it in the head tags
<title><body></title> <script language="javascript">  </script> Set up a table the full width of your web site, with no border, cell padding or cell spacing. Then, set the background image of that to whatever image you would like to appear in your site.