Under the alias mp3.length you should fix this line:
set %mp3.len %mp3.min $+: $+ %mp3.sec
To:
set %mp3.len %mp3.min $+ : $+ %mp3.sec
The $+ touching the : is causing the numbers to come out like: 0132, when you first Choose a song. Other then that it\'s a decent player. =)