OK- here go as many details as I can muster- please let me know if I'm just too far behind and need to throw in the towel. htm pages- they are ssi enabled The server does allow php as I have other sites using php nuke on this server I did change the php file to read if htm instead of if shtml however- I can't even get the ads to show up- never mind get to validation. I can search and replace- so passthrough code is not really an issue. http://www.recipegal.com help?
If you are always going to use SSI in your setup, try taking out the line about seeing if it's a .shtml extension (and also the closing bracket).