Transfer songs from PC to mobile phone memory card

Question

I have connected my daughters phone to the PC with the Samsung PC studio 3 using a bluetooth connection and it appears to be working fine. the problem I have is when I try to transfer songs from the PC to her memory card in the phone it cannot be seen.The songs cannot transfer as the phone has insufficient memory but I can't seem to get the phone memory card to show as usable space to transfer the songs to?? Can you help as I'm going to throw somethimg at the wall shortly!!