If you are talking about the PC app converting MP3 to WMA, that is what his app does (BlueCell, helped some by xboxwarez)... I got his app approved by sourceforge, but I have not posted the sources yet, because I have been very busy with KoldFuzion working on some things

I may have time tommorrow night though to upload it and sort it out.. Maybe you can help geniusalz ? He is looking for developers to help, as he has one bug, I'm sure he can talk to you about it better than I... Shoot him a PM or post a message in the development forum, he has a thread asking for help there...
I could help, depending on what the problem is. Porting the library over to xbox would rule, but I'm not the right person for that.
I'll send him a PM anyway