I have one here, but since I use a proper router these days, it's been a long, long time since it was used!

Are you using coax ethernet or 10Base-T ? There's a little switch next to the coax connector that needs to be set appropriately.

Also, I don't recall testing one of these with a 10/100 switch port, but I remember some similar products refused to work with 10/100 switches - the switch port needed to be locked to 10Mb.

I think it's just a "dumb" bridge, so you probably don't need to set the ethernet zone or anything like that, but someone else may have more information on that.

[EDIT] and no, it doesn't need drivers, it just makes localtalk only network printers appear on an ethernet LAN.