Hello,
I encounter different problems with my plugin. Indeed, I would like to create a stable plugin but a lots of things happend...
Lets see my code : http://pastebin.com/y52g8i2Y
When I connected as "customer" or as admin, I can see that, 3 metabox doesn't work correctly and I can't see on left menu, category, targs, voyage and technical !
http://i55.servimg.com/u/f55/12/75/44/40/wp-tax11.jpg
Thanx for u explanation and your patience.