You may download ZOMG here.
You may view the revision log at hg.debian.org.
zomghelper will be released sometime laterish.
Get yourself a Last.fm username and password. The first time you run zomg, it will prompt you for them. If you screw this up or need to change them, edit ~/.zomg/conf .
Simply run the script with the filenames of the .ogg (vorbis) or .mp3 (disgusting) files you wish to play. If you want them to be shuffled, use the -z option.
ZOMG will submit each track to Last.fm until it fails to receive an OK response, after which it will cache the Audioscrobbler data. On the next invocation of zomg, it will attempt to flush the cache.
For Ogg Vorbis, you need vorbis-tools (ogg123 and ogginfo).
For MP3, you need mpg123 and python-mutagen or eyeD3.