i have to apply to my embassy to change my passport with a new passport, because in the old one the pages are ended to stamps: i kindly ask the procedures for the application to transfer my visa non immigrant O multiple,issued in turin consulate, into the new passport.thank you very much for suggestions.

Take the old and the new passport to Immigration and they'll do it for you. Do you have re-entry permit/s too ?

thank you for your kind reply. I don't have re-entry permit, I have the small stamp allowing me to stay 90 days into the kingdom (at now ending on next 1 december 2004), as i have non immigrant O visa. I have got it in aranyaprathet when I made my visa tour on last 3 september. before next 1 december i will get the new passport because the old finished the pages for the small stamps.