Wireless on Thinkpad X200 with OpenSuSE 11

When I get the hardware list with Yast2 the AR242x wireless card is
present, but the connection doesn't exist.
I've found a solution at [url]http://en.opensuse.org/Atheros_madwifi[/url] and
executed all steps, but I still can't add wireless connection. The
message in YaST2 Network Setting is:
"Unable to configure the network card because the kernel device (eth0,
wlan0) is not present. This is mostly caused by missing firmware (for
wlan devices)."
Does somebody know what else can be done ?

Thank you for advance.

Bravo.