Many thanks for the help from all of you. But as usual, simple things are not always as simple as they may appear. I fixed the dead link - had to do with the need for Index to be index (with lc i).
Can I have some help with the business about the question marks? How do I invoke ASCII 45?
Can I also have some help with the googlebot detection code? I have added the line to the .htaccess file shown in the TCH forum, but that causes the index page to not open at all:
AddType application/x-httpd-php .php .html
Maybe the simplest thing to do is to remove the googlebot code, or just forgedaboudit for the time being??
You can probably see these mistakes are those of a beginner. This is my first attempt at a web site. I would appreciate any help.