Thank you so much for your reply, I really appreciate it.

I'm just making supper for the kids and haven't had a chance to try deleting the main variant, but I'd say that I don't see that this is a loading problem since I'm just viewing the file that Xara has created when I've exported the website to my local filesystem, that I've then FTP'd up to the server, and what I pasted above is the contents of the level1.php file before it has been loaded by the browser. Surely the problem is what Xara is generating?