Ableton Live uses the VST3 or AU versions of the Sessionwire plugins. If Live doesn't list them after you install, open Settings > Plug-Ins, check VST3 or Audio Units are turned on, and click Rescan.
If the audio your Guests hear stutters or repeats when Live loops a section, send your audio to the Sessionwire driver with a Multi-Output or Aggregate device instead of the Send plugin. See Other ways to route audio into Sessionwire.
The best recordings come from the performer's side. If you need to record here, read Record someone with the Receive plugin first, as the recording arrives late by the round trip.
If your Guest hears themselves back, set the Receive return's Audio To to your interface's outputs (Ext. Out) instead of Main, so it doesn't feed the Send plugin on Main.
Only needed if your talkback mic isn't on input 1 or 2, or you want to process it. See Route Talkback through your DAW.
If Live crashes when it loads the Sessionwire plugins, clear its plugin cache and rescan. If the plugins can't find their device, see Sessionwire drivers or plugins not showing up.