Quoted from lurch:Good call..... forgot about that. Flipping the screen wont help this either, the image needs to be flipped on the horizontal.
Options:
1) You could connect it to a projector (many projectors have this built-in)
2) Check your monitor, you might have the option to do this there (some older LED's have this)
3) Buy expensive tele-prompter adapter ($400+)
4) Still looking.....
You could use a monitor that has a switch to flip the image for rear view mirror applications in a car... such as this one: http://tinyurl.com/k8gpwwh
They often have another switch to flip it upside down to allow mounting from the top or bottom.
Then you might need a different converter...VGA to Composite, like this one:
http://www.amazon.com/Monoprice-102509-S-Video-Composite-Adapter/dp/B001I25ZWM/ref=sr_1_2