Win98 asking for Ecd520p90x disk

[Grovebaby]

When installing 3com 3c905c-tx-m nic. windows asks for files on the "ecd520p90x disk. I,ve searched high and low and can't find any info.. The files it seeks are something like w90wsomething xbc.cat.

Please help me before I lose my mind markcosker@home.com mark.cosker@hs.utc.com