[jitter] drawing on the screen

Hello
Sorry for the "Stupid Question" but i'm a bit new to Jitter.

what will be the simples way to draw 2d text (or shapes) on the screen.(in full screen mode)

the only thing is that i need to be able to position the text/shapes precisely on the screen using the screen coordinate. (x,y from the top right corner)

thanks
Saar