Problem with phpBB Header link

Hi,
i've installed Gallery 1.4.3 as a module for phpBB 2.0.6
Everything is ok within the gallery but when i click on the link at the top of phpBB it simply points to the forum index if i'm in the idex page, to the FAQ if i'm the FAQ's page, etc. It seems like the script doesn't pass the right variable.
I've correctly done the phpBB manual changes and installed the gallery script in the modules folder under phoBB, having copyed the moduls.php page in the forum root folder.
Can anyone help me?

The forum is at:
www.famigliamosca.mcgrelio.com/bin/forum
and the gallery at:
www.famigliamosca.mcgrelio.com/bin/forum/modules/gallery
(the gallery is not the one mentioned in my sign, it's another one!)

Thx a lot, cya ;)