Micro SD Card/Samsung Messager

Okay... I'm a total Newbie here...
I went and picked up a Cricket phone the other day. I got the Samsung Messager. I REALLY like it so far!!! My question, is, I know the little bugger is an MP3 player... and I know I need to get a micro sd care for it... but how do I get my music to the card? I have a lap top, an HP dv6700... I read something somewhere about a 'sanso' and a usb cord etc?? What do I need to do this!? And how...
Thanks for your patience.
Rani

Format da card u can use windows media player to sync them then go to the memory card folder n drag and drop music to music folder
sam-r450 UP.Browser/6.2.3.8 (GUI) MMP/2.0