Straight from Mobifactor here's the 1.06 version of the mighty PowerMP3,acknowledged by many as the best Symbian audioplayer.

Official changelog:

Please uninstall the previous version of PoweMP3 before installing new one.And remember to SIGN with your cert this release!

Multimedia handset:
- Now the volume buttons work fine.
- Answer button action -> Next song
- Microphone mute button action -> Play/Pause
- Next, Prev и PlayPause buttons DOESN’T works , it seems no public Nokia API for capturing such buttons
- Removed “ErrRd” file from installation.
- Maybe EQ will be work. We have only tested it on e51 and n95 devices.
- Added Stereo Widening audio effect, it works on N95

For those unaware of this wonderful piece of software,here's a brief description:

PowerMP3 is a music player with smart and user friendly interface. It has everything you need to enjoy your favourite music and helps to organise your music library the best way.

PowerMP3 turns your phone into a high quality audio player that supports most popular audio formats, has fully customizable user interface and perfectly integrated with your phone.

Features:

- Most popular audio formats (MP3, OGG, AAC, MP4)
- Rich music library with moods, ratings, playlists and folders
- Album cover with Internet search
- Visualization effects - graphic spectrum analiser
- Tight integration: phone key shortcuts, access by statusbar icon
- Fully customizable skins
- Built-in phone Equalizer support
- Handsfree playback control
- Sleep timer