Thank you. I purchased a Linksys WUSB54GC on the advice of a store clerk before posting this post. I did this on the bet that Linksys had drivers for the mac. No luck.
I do not see drivers at the Netgear site either. Are the drivers built in to Mac OS (10.4)?
This adapter is sold as Mac compatible. It is being sold by Other World Computing that focuses on selling aftermarket upgrades for Apple computer systems.
In my experience USB dongles are far more trouble than they are worth. Just get an ethernet bridge and be done with it. There are no drivers to worry about, and the savings in aggravation are well worth the (slight) added cost. There are many out there, including most any gaming adapter and a very few wireless routers (I have a Zyxel P-330W). You might ant to check eBay.
You just plug it in and go. As I said, a very few routers have bridge capabilities, but are sometimes difficult to set up. Just get a gaming adapter and plug it into the mini, and you should have instant access (the mini thinks it is on a lan).