Worpdess 2.6 + WPG2 3.07 = wpg2 page returns a 404

Your Photos tab is linking to
http://www.famillepellegrin.fr/blog/index.php/wpg2-2
if I remove "index.php/" from the permalink your wpg2 page displays correctly

Try logging into your Admin, click "Manage" then "Pages" tabs, click Photos to edit the WPG2-2 page, them click "edit" to the right of the Permalink (located one line under title) remove "index.php/" and save.

Let us know if this fixes the problem ?

Thanks for the info, I tried to link on http://www.famillepellegrin.fr/blog/wpg2-2 but this page has my blog content, not the gallery one.

This is probably because of my .htaccess file, here is its content.

# BEGIN Url Rewrite section
# (Automatically generated.  Do not edit this section)
<IfModule mod_rewrite.c>
    RewriteEngine On

    RewriteBase /blog/

    RewriteCond %{REQUEST_FILENAME} -f [OR]
    RewriteCond %{REQUEST_FILENAME} -d [OR]
    RewriteCond %{REQUEST_FILENAME} gallery\_remote2\.php
    RewriteCond %{REQUEST_URI} !/blog/wpg2-2$
    RewriteRule .   -   [L]

    RewriteCond %{THE_REQUEST} /blog/v/([^?]+)(\?.|\ .)
    RewriteCond %{REQUEST_URI} !/blog/wpg2-2$
    RewriteRule .   /blog/wpg2-2?g2_path=%1   [QSA,L]
</IfModule>

# END Url Rewrite section


# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /blog/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blog/index.php [L]
</IfModule>

# END WordPress

Glad you got it working..

The permalink structure /%year%/%monthnum%/%day%/%postname% would also work. I think throwing index.php into the structure was isolating the WPG2 Page from being loaded.

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Wordpress / Gallery2 (WPG2) Plugin, , WPG2 Documentation, WPG2 Demo