There maybe a way to do composite cables, but I do not know it. The mhl adapter hooks to the micro usb port in the bottom and then you hook up your micro usb power cord into the mhl adapter then you hook a full sized HDMI cable into it and then hook to an open HDMI port on the TV and presto, you can HDMI mirror.
The TV screen will show whatever is on the screen of your skyrocket. The adapter cost about $29. You may be able to get it for less but I wanted an OEM adapter.