yams+maxigallery menu not pointing at /…/…/gallery.html?pic=64#

my choose-language menu' doesn't work in the images pages generated with maxigallery: its url don't have the final "?pic=64" part, as an exhample, on the english page

http://mysite.com/en/gallery01.html?pic=64

I have the italian flag pointing to

http://mysite.com/it/gallery01.html

that's the thumbnail page, instead of

http://mysite.com/it/gallery01.html?pic=64

that's the italian version of the same picture.
AND, even worst, the "manage picture" button gives a blank page Help please.
Thank you

I tryied this code: wich works in the page, but points on the same language (the page itself)
To have it pointing to the other language page I then tryied to put the link in the template of my language list menu, made as in language list generation, and there the final part (?pic=64) is lost again.
My idea is that the yams menu is processed before the maxigallery snippet, so it's unaware of the current page.
Any help?
Thank you