Problem with WG511 installation

[Gerry Rucker <gerry grucker com>]

I am able to successfully follow all of Allen Winter's detailed post on this issue
(http://mysite.verizon.net/winterz/doc/prism54_fc2.txt) up to the point of "Try it".
I plug in the card and do the <ifconfig eth1 up> and nothing. No lights come on. Then
I do the command <iwlist eth1 scanning> and I get "Failed to read scan data :
Input/output error".

Does anyone have any idea where to go from here? I am totally lost at this point.
Thank you,

Gerry