And this is the link to where I bought it from on ebay. I think the guy had about 10 of them so they should still be around?
http://www.ebay.com/itm/NETGEAR-WG111v2-54-Mbps-Wireless-USB-2-0-Adapter-/300644651178?pt=LH_DefaultDomain_0&hash=item45ffd150aa#ht_973wt_966