NK,
I'm home now, (albeit for just a day), but, here are the pictures I promised.
The first one shows the position of the plastic retainer's that come with the mount. The position of the top hole is 10 1/2 inches down from the top and 9 3/8 inches from the left side wall. You can use the bracket to align the lower hole. I also used the included screws, which are 2 1/2 inches long and pretty heavy duty. You can also see the upper strap that secures the TV while traveling.
The second shows some of the hardware used to mount the straps.
The third one shows the mount bracket along with the straps.
The fourth shows the TV tilted away for access to the HDMI and RCA plugs.
The fifth one shows how the TV is positioned for travel and how it fits within the mounting area. With this TV, I have about 1 1/2 inches around the TV and the frame of the opening. It fits nice, and I don't have to worry about any rubbing on the sides.
The alignment will be determined by the where the mount bracket is attached to the TV. Mine happens to be in the center of the back of the TV. Good luck, Hope this helps.