As I mentioned in my previous post, I've configured everything, in 32 bit mode.
I followed this link : http://www.opensolaris.org/os/community/laptop/wireless/ndis/
After installing the drivers, maybe you have to do this :
Start==>Administration
==> Networks ==> Wireless ==> properties ==>
enable this connection, select the Network from the available networks,
keytype- hexadecimal, configuration-DHCPIf you want to auto-enable this wifi connection then check 'enable on boot'.