How to use my external USB hard drive. Haven't backed up my C: drive for about 18 months on my

Question

Haven't backed up my C: drive for about 18 months on my Western Digital USB 2.0 160GB. S/N: WCAL9671002 MDL: WD1600BDNN15 Now I've forgotten how to do it & can't find my little booklet. When I turn the WD on the window that comes us says that the device has more than one type of content. The choices are: Play: Windows Media Player Browse Media Files: Using Media Experience Copy Disc: Sonic Add Files: Sonic Play: Music Match Copy Pics to folder on Computer View Slide Show Print Pics View this image in a slideshow View pics on a removable media Copy pics & view: Picasa Download/View images Play Video Files Open Folder to view files No Action Don't see anywhere about backing up C: I also pressed the button down from the power button (kind of looks like two pages overlapping). Nothing happened. Seemed to me that was the button that I pressed to go to a choice of how to backup. But as I said, nothing happened. Also pressed the third button - three leaf-like symbols Nothing happened. I can access the WD & see/access those files. Any help would be most appreciated. Thank you, Sharon MacDonald [phone] [e-mail]