This is how I have used it. Don't know if it will help you much, but it may give you some idea:
This is my ".x" file which sits in my "xdata" folder: file name: mainfooterlinks.x <FONT SIZE="-2"> <A HREF="cruise.shtml">Choose To Cruise</A><B> | </B> <A HREF="domestic.shtml">Close To Home</A><B> | </B> <A HREF="international.shtml">Around The Globe</A><B> | </B> <A HREF="tips.shtml"><NOBR>Smart Tips</NOBR></A><B> | </B> <A HREF="bookit.shtml"><NOBR>Book It Now!</NOBR></A><B> | </B> <A HREF="index.shtml">Home</A><B> | </B> <A HREF="smartspecials.shtml"><FONT COLOR="#990000">Specials</FONT></A></FONT> <P> <FONT SIZE="-2"> <br>Web Site Design ©1998 Summit Travel Web Technologies.<br> SMART TRIPS® is a division of Summit Travel Group, Inc. <BR> Problems with this site? Please notify: <A HREF="MAILTO:[EMAIL PROTECTED]" NAME="Summit Travel Group" TARGET="_new"> Summit Travel Group</A></font> This is how I use the above file in a SSI. By simply using <!--#include virtual=.... and specifying the path to my file I can include it in any document and then one change to the .x file changes throughout my project. You will see how there are several other includes in this page. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <!--#include virtual="xdata/title.x" --> <!--#include virtual="xdata/metatags.x" --> </HEAD> <BODY BACKGROUND="images1/bg.gif" BGCOLOR="#FFFFFF" LINK="#006633" VLINK="#006633" ALINK="#FFFFCC"> <P> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="0" WIDTH="100%"> <TR> <TD align="center"> <!--#include virtual="xdata/mainfooterlinks.x" --> </TD> </TR> </TABLE> </BODY> </HTML> My site www.smarttrips.com uses SSI throughout - very useful. Let me know if I can help anymore, or if this wasn't the answer you were looking for! Paul.