Unfortunately, the problem here is not with the driver, or with the
installation. The problem is a hardware incompatibility. Your IBM
Thinkpad 760CD (a design dating from 1995) has two PCMCIA Type II
slots. These are designed for 16-bit PCMCIA cards. The TEW-226PC is a
32-bit CardBus PC Card adapter. This is not backwards-compatible with
the 16-bit PCMCIA slots on your Thinkpad. You can differentiate a
CardBus adapter from a PCMCIA adapter by looking at the connector-end
of the card; if there is a (usually gold-coloured) metal plate with
bumps on it on the 'top' (ie. logo-sticker) side of the card, then it
is a CardBus adapter.
If you can return the TEW-226PC card to the retailer where you
purchased it, I suggest that you do so. Unfortunately, it is extremely
difficult to find any wireless adapters these days that are 16-bit
PCMCIA compatible, especially ones as affordable as the TEW-226PC.
However, here are some options for you to consider:
Micro Plus MP-C100
Wave Buddy 802.11b
As the market for 16-bit PCMCIA wireless adapters is rapidly
diminishing, these cards may be difficult to find in stock. As well,
given the limitations of the 16-bit interface, you will not find any
802.11g adapters that would work in your laptop.
I hope that this Answer helps, and best of luck in finding an adapter
that helps you "cut the cord"!
Google Answers Researcher