WNCE2001 WEP Problem

Greetings,

I am traveling and need to access a "mifi" (actually emobile) where I am in Japan. It has a WEP password and not a 64 bit key. Is there ANY way to access this?

I CAN NOT log into it and check the key or change the key or generate a password. If I could I wouldn't be writing this. IEvery laptop I have can access this wireless but not the desktop that I need to using the WINCE2001.

Is there an older firmware that might allow me to?