Internal Modem Not Detected

I am trying to get AOL up and working on my brother's Beige G3 running 10.2.8 but I do not get "Internal Modem" as an option in the Network tab in System Preferences. I only get "Modem Port", "Printer Port" and "Built In Ethernet" as options. Any ideas? Should I try and reseat the modem or update firmware or just give up and buy a new modem? Any suggestions are greatly appreciated.