If your wireless card is one of the Lucent cards / clones (Wavelan, Orinoco, Dell True Mobile etc) then you can use the driver found in the Driver Downloads section of this page: http://main.system7today.com/helpcenter.html .
This is the Lucent Wavelan driver which is different from the Orinoco driver. Since the cards are the same under the hood it doesn't matter which one you use but the Orinoco one (version 6) needs Mac OS 8.6 to work I believe. The Wavelan Gold driver is compatible with System 7.5.2 and up; I expect the Silver will be the same.
This is the Lucent Wavelan driver which is different from the Orinoco driver. Since the cards are the same under the hood it doesn't matter which one you use but the Orinoco one (version 6) needs Mac OS 8.6 to work I believe. The Wavelan Gold driver is compatible with System 7.5.2 and up; I expect the Silver will be the same.