This is the manual (see attachment below) and videos for the XCM 1080p HDMI Cable (for older Xbox 360s without a factory HDMI port), its also the same if you have the older 1080i version of this cable.
Notice: Please note the older 1080i version (no longer being manufacturered) of this product is black and the new 1080p version (current model) is white. For the 1080p version you will obviously change the resolution to 1080p on your console instead of 1080i.
Video #1: This shows you how to connect the XCM 1080p HDMI Cable to an HDTV.
Video #2: This shows you how to connect the XCM 1080p HDMI Cable to a Monitor.