You are looking for a software that reads ogg files ?
winamp is doing the job fine.
You can find it at this adress:
http://www.winamp.com/
However to read this kind of file you need a dedicated plug-in.
Just go to this adress:
http://www.illiminable.com/ogg/
download and install the codec and you should be able to read ogg files.
In the worst case go here:
ogg vorbis file reader
This is a built-in feature in this player.