ok the drviers are installed! (i found the correct kernel source...)
But then again, when I try to edit my config, I do:
vi /etc/x11/xf86config-4
and then when I enter it (using E) there is nothing appart from green lines on the left side (it appears to be the vim editor but heck there is nothing)
I also tried to access it via graphic mode. But when I found something, I didn't found the module section and there was no driver option in the device section...it was in the screen section...so I didn't save anything..
please help me