The wlan0 device is created after you run ndiswrapper -m. From your post it also doesn't look like you loaded ndiswrapper with modprobe and that is definitely going to cause trouble. I would suggest reading through the install instructions at either the
ndiswrapper wiki (they also have Suse specific instructions) or working through the INSTALL file that comes with ndiswrapper. Basically it looks as if you skipped a few steps in the installation process.