Well Sickness locked my previous post, but I think you didnt quite understand what I tryed to say. Maybe I wasnt clear enough.
First I want to say thanks for the link (even if I was already aware of the commands). The thing is I cant find the source code of hydra in backtrack. I can only find hydra.c.
I found this post on how to install from scratch : http://ubuntuforums.org/showthread.php?t=1817817. But I was wondering if I had to go all through all that trouble to apply the patch ?
Can I not apply it directly to backtrack without recompiling the whole thing ? If so, where is the directory to do so ? ( /usr/src/linux/drivers/net/ ?)

Thanks in advance.