Just new to NDS.please help

I bought a NDS lite and r4 with moonshell already and it can play games already. but it cant play music. the site for the r4 is : h t t p://ndsill.net/
in the menu. there are 3 buttons right.. the 1st one is for the games.. the 2nd one is for the music.. when i click it.. what happens is there is a screen showing this in the top screen:======================================
| pc=0x2000710 sp=0x02803ef0 &IPC=0x027ff00 |
| 0, IPCSize=28byte. |
| DLDI: active_interface= 0x02004aa0, ID= DL |
| active+interface->ul_Features= 0x00. |
| startup failed. |
| |
| |
| |
|__________________________________________|and on the buttom screen:======================================
| /moonshl2/reload.dat . |
|  |
| moonshl2_DirectBoot.nds . |
| _________________________________________ |
| Loading "/moonshl2/reload.dat". |
| |
| Please start "moonshl2_DirectBoot.nds |
| when stopped on this screen. |
| (|>>) |
|__________________________________________|Im really lost.. I've been on a trial and error on many many things for the last few weeks but still no results. Please help me

If you want to play/listen to mp3 music;Download this : Imp-ng 2 alpha MP3 PLAYER for NDSYou will need to create an 'mp3 folder' and place your music files in there, along with the imp.nds rom. Run the homebrew program (the one mentioned for NDS, not the one for GBA), then choose that mp3 folder, and play it. Quality ain't good if you run on the NDS's speaker. It's better when using earphones.