A bunch of thanxsDavid for this very clear Tut 8)
add it in the site. Sure it'll help other newbies like me.
I didn't saw what i've needeed a driver !
now i've installed it...
in fact i haven't got my board (in fact 3 USB board), Gianluca send it friday but for preparing it arrival i was checking to know if i had all what i need, and i've read the page about bootLoader and was in pain to understand.
I suppose Gianluca add the bootLoader.
thanks again for your help ;D
regards
eric