Jack Mello <firstname.lastname@example.org> reported his frustrating experience after updating a Mac Plus from ARA 1.0 to 2.0 and attempting to configure the settings: "This caused the machine to give me a Finder error. The only option was to hit the Restart button in the error dialog. Assuming that the problem must be with the installation I cleared out the ARA files and tried the installation again, and again! By the third time I was pretty certain that I had my end right. At this point I laid my hands on the phone and typed out the Apple SOS phone number."
The support person at the other end of the SOS line confirmed the problem and suggested it might be a conflict with the Plus's ROMs. Although the first person Jack spoke to mentioned that a fix or patch might be forthcoming, a fix hasn't shown up yet. You might be wondering what the big deal is, what with the Plus being so old, but in many ways - and especially for organizations on limited budgets - an old Plus is the perfect choice for a server. Jack wasn't sure about whether or not the client version of ARA 2.0 works on a Plus, but it would be worth checking on.