.htaccess question

[Ron]

Assuming you meant that the redirect in the post #13 (just above yours) is the one you've settled on... We will add 3 lines in front of the previous code.

RewriteEngine On 
RewriteCond %{REQUEST_URI} ^/gallery2/main.php$ [NC]
RewriteCond %{QUERY_STRING} !^g2_item(.*)$
RewriteRule ^(.*) http://mysite.com/gallery2/index.php/? [L,R=301]

RewriteRule ^main\.php(.*)$ index.php/g2/map?path=main.php   [QSA,L]

This says:
IF the request_uri is main.php (case independent) AND the query_string does not start with "g2_item"
THEN externally redirect to index.php/, erase any query string, return status 301, stop processing any more rules.

ELSE (same as previously)

IF the request_uri is for main.php
THEN internally redirect to index.php/g2/map?path=main.php, append the original query string, stop processing any more rules.


I don't have the ability to test this right now, but I THINK that this will work for what you've just asked.
Mod_rewrite can be tricky, so please test all the conditions, including "www." prefix, g2 and non-g2 query strings and blank query strings

[Ron]

FYI I tested this and it appears to be working properly.

I'd still be testing it in your particular environment if I were you. Server setups can affect the way mod-rewrite behaves.

[Carter]

Looks like that works well as far as I can tell. Many thanks again Ron, I really appreciate it.

[Ron]

Great! Feel free to share.