We took every precaution to try and make the switch as painless as possible, but if you're having trouble logging in and came here to ask 'Is Liberation MUSH still around', then the answer is yes: From here on you can reach us at:
game.liberationmush.site
port: 2020
It should be a better experience in every way, and should take care of the 5% of people who had trouble logging in because of port issues.
EDIT: If you have MUSHclient (MushCLIENT?) you might need to click on 'Clear IP Cache' to refresh the IP address on the backend, even if it's pointed to the correct address.