Ok, I have had this phone for some time now and am fairly happy with it.
I use a 1gb memory card to do my DT.
As far as ringtones, they have to be in .mid format. So just rename the file extention from .mp3 to .mid and that works great!

Just use winamp to change the tags, they have to have a artist name and song name in order to be picked up by the phone.
As for using the player for music, just convert them to .wma then it works good too. Even using the onboard speaker works pretty good for playback, tho i suggest using a headset.
The only thing i cant figure out is how to use DL'ed games...if anyone has this figured out i would love to know.
Thnx and GL