Hi Dave,
I remember having similar errors when I tried to install it this way as a cgi binary (adding these lines to the config file).
Then I saw in the install.txt that this is not recommended anyway.
Installing PHP for Apache as CGI binary
If you wish to install PHP as a CGI binary, read this first:
[url]http://www.cert.org/advisories/CA-1996-11.html[/url]
and then if you are really sure, insert these lines to your conf file:
ScriptAlias /php/ "c:/php/"
AddType application/x-httpd-php .php
Action application/x-httpd-php "/php/php.exe"
Note, we consider installing PHP like this suicidal.
and followed the instructions to install it as apache module. This actually worked out for me, so you might give it a try.
Hope this helps,
xblue