Motorola V180 / V186 / V188

Hi, I have the motorola v186 and I was wondering if anybody can help me transfer files from my pc to phone. Using mobile Phonetools, I was able to transfer files fine from pc to v180. But it doesn't seem the same for the v186. Do I need a different driver or something? When I try to move mp3s of midi's over, it says unsupported format - conversion not possible. If anybody can help me that would be great.
Thanks.