Pixel Fonts in Full Screen Flash?

Hi there, Ive made a website that does full screen flash and Im trying to use pixle fonts. However they blur. I know that I have to keep the movie centered, I have found a piece of code on a forum about full broswer flash:

"If using pixel fonts use

myClip._x = Math.floor(stageXCenter);
myClip._y = Math.floor(stageYCenter);

to keep the fonts crisp!"

Ive tried putting this code in the root of my movie, but can’t get it to work.

Anyone know where it should go, or have an alternate method to center the stage on whole pixles?

Any help would be much apreciated - Trev