It's listed as a generic Prism card in the config file that comes with the latest orinoco_cs drivers, which are also included in the Linux kernel if wireless support is enabled.
This entry in /etc/pcmcia/config should tell your system to use that driver.
card "Intersil PRISM2 11 Mbps Wireless Adapter"
manfid 0x0156, 0x0002
To manually load the module, modprobe hermes orinoco orinoco_cs
Then use iwconfig to set the card parameters.
Post any errors that either of the above commands produce.