Another useful tool for the PC for your jailbroken phone is iFunbox.
It allows you to browse through (and modify) the entire file structure via USB cable, as well as having a simple drag and drop interface for wallpapers, ringtones, your music and you can also use your phone as a mass storage device.
It allows you to browse through (and modify) the entire file structure via USB cable, as well as having a simple drag and drop interface for wallpapers, ringtones, your music and you can also use your phone as a mass storage device.