Ok, I downloaded the base version 0.5 from this thread :
http://www.twcenter.net/forums/showthread.php?t=381094 ,the first six files(not alternatives)
Then I put them all in MTWII\mods folder in this order : part one, part two, part three, part four, part five, last part
Then I installed patch 0.7 in MTWII\mods\FA
I tried it 2 ways: First I entered the game and start a campaign after installing 0.5 version and isntalled 0.7 only after it. Second I installed both 0.5 and 0.7 without a single start of the game.
Both times if I chose HRE they spoke arabic, and a gunsmith was available in Milan oO