FC Password Fixer for Mac

From Silly Bit:

FirstClass Client 6.0 and higher is incompatible with FirstClass 5.x servers when you save your password in the settings file. The problem is that the newer client sends the password encrypted, and that the older server doesn't support encryption. This results in having to manually enter your password every time you connect, and also in not being able to use the feature tht allows to connect automatically when FirstClass is launched.
This application lets you work around this problem. Using it is very simple and risk free, because the application makes a copy of the FirstClass settings file.