How do you view media files on an 7100i (Nextel)

If you go to compose an MMS message and choose to insert Audio, you get a list of files. usually midi. I have all midi and 1 amr file which was a voice note that was sent from another blackberry, non-nextel version.

2 Questions

How do I play the midi files without adding them to an MMS message

and

How do I get rid of "voicenote.amr"

I spoke with nextel reps and they are useless....

Basically a file manager will do it for me. As long as I can view files and delete files Ill be good...I tried downloading Rove File Manager but that did absolutely nothing worthwhile. I couldnt even view the files on my device, just browse network, which is of no use to me.

When installing files it gives a path....I want to be able to access that path from the phone.

anyone????