Doug, do you know this post?
Bewertung WinAmp in rating wmp
Put this Formatstring into the Value edit field of a column definition dialog, leave the Field edit field empty ...
$repeat('*',$if($eql($regexp(%POPULARIMETER%,'^rating@winamp\.com\|(\d{3})\|.+$','$1'),255),5,$if($eql($regexp(%POPULARIMETER%,'^rating@winamp\.com\|(\d{3})\|.+$','$1'),196),4,$if($eql($regexp(%POPULARIMETER%,'^rating@winamp\.com\|(\d{3})\|.+$','$1'),128),3,$if($eql($regexp(%POPULARIMETER%,'^rating@winamp\.com\|(\d{2})\|.+$','$1'),64),2,$if($eql($regexp(%POPULARIMETER%,'^rating@winamp\.com\|(\d{1})\|.+$','$1'),1),1,%RATING WMP%))))))... and you will get stars for numbers ...
1=*
64=**
128=***
196=****
255=*****
DD.20110401.2353.CEST