|Assuming this is your card, it says the card is based on the Ralink 2561T chipset. However, if you look at the Ralink drivers site, no Win9x/ME drivers are available for the 256x:|
Try the very last one on the list. Just make up a bogus name & email for the download, this will work:
name: bogus man
email: bogus @ bogus.com
Make sure to completely uninstall the other driver 1st. Then run CCleaner-Slim, both the cleaner & the registry scanner. Remove everything they find.