I am trynig to install the ffmpeg libraries and the link provided is dead, it is even dead when I try to hit just lame.buanzo.org
It’s not a dead link, I’ve just tested it.
The link goes to a web page - it’s not a direct download link. See the instructions here: https://manual.audacityteam.org/man/installing_and_updating_audacity_on_windows.html#winff
The file that you need is “ffmpeg-win-2.2.2.exe”