I actually had a similar problem (not the same hardware, but with wificonfig's user interface).
When I created a wificonfig profile, I put in my WEP key and set the auth correctly and so on, but I couldn't get it to connect. It also wasn't showing up in scan, but I didn't actually think that was a problem because scan never showed more than 1 or 2 networks, when windows would show 17 or so (I live in an apartment building). If I just created the profile with the correct ESSID and WEP key, I could then connect with inetmenu even though wificonfig was failing. This message posted from opensolaris.org
