[Plugin: NextGEN Gallery] about tag [album id=x template=extend]

Hello!!

I’m trying to call an album I’ve created with nextgen gallery using [album id=1 template=extend] inside and article but it looks it doesn’t call the code of album-extend.php file so, even the gallery thumbnail is visible, the link to the album doesn’t work…

to be more precise: if I put [album id=1 template=extend] as link I get:
…/?album=1&gallery=3&pageid=105 which it reloads the current page…
Indeed if I go in gallery I have this link in the thumbnail: /?page_id=95&album=1&gallery=3 which it works and shows the gallery content…

Any help would be appreciated…. at least a suggest to which PHP file of the plugin I have to look at to correct that link…

Thanks to all!
Ciao, Luigi