Well actually it is in the correct forum becaue the item that is scratched isn't the LCD it is the Touchscreen.
Sorry bud i think you are straight out of luck for an easy repair.
You could do the following. Order a replacement touch panel and then check out the following thread
http://www.mp3car.com/vbulletin/show...2&page=1&pp=15
I went through somnething similar. My lilliput touchscreen scratched really easily. Then i fried the controller board and ordered anther lilliput. The above thread is the exploration of products designed to protect the touchscreens