Customize m3u file paths

[MCCCLXXXV]

I have a blackberry bold. It had internal memory and and SDcard. when i connect it to my computer, the internal memory shows up as drive L and the SDcard shows up as drive M.

I want to store all my music on the card. when i connect the bberry, device M shows up under portables on winamp. I customized the options to store all music files on
M:\Blackberry\music
and all playlists on
M:\Blackberry\playlists

when i drop a playlist on M, the files and the m3u all go the the proper directories. when try to play the playlist on the bberry, i cannot find the files (although it knows all the names of the songs that should be on the list).

I manually saved a random playlist on the bberry itself and looked at the format of this m3u file in wordpad. The format i saw here was:

file:///SDCard/BlackBerry/music/T.I.%20-%2056%20Barz%20(Intro).mp3

the format on the list winamp created was:

\Blackberry\music\T.I. - 56 Barz (Intro).mp3

so, all i did was change this format to:

\SDCard\Blackberry\music\T.I. - 56 Barz (Intro).mp3

for all the songs and it worked fine.

My question is (finally) how do i make winamp add that little part automatically? Note that when I go into the M drive on my computer, there is no folder named SDCard. I tried setting winamp to save the playlist under M:\SDCard\Blackberry\playlists, but it just creates this structure on M. any ideas?

thanks,
Joe