Your Ipod must has an USB connection ... which is like a printer cable , the Ipod is recommendly managed by Itunes ( a software ) .. with Itunes you can arrange files in the Ipod and you can even use some space in your ipod as a flash memory where you can save any types of files.
www.itunes.com
important note .. IPOD recognize only MP3's so if your audio file has .rm extention then you wont be able to listen to it on your IPOD
there are many softwares that convert rm files to MP3
when you connect your IPOD to your computer by the USB connection go to my computer there you will find a new hard ware found ...click on it then copy the file you want and paste it where ever you want on your pc