Fullscreen flash screensaver, positioning unscaled movieclips


I am making a fullscreen “screensaver” project (using screentime, FYI).

I have some mcs on the stage that I want to scoot down to the bottom left, right or whatever on the screen.

I want these elements to position themselves differently based on the users resolution and aspect ratio of their monitor. (for example: whether the monitor is 800x600, 4:3 OR 1366x768, 16:9, I want a text field or mc to be 10 pixels for the bottom and left of the screen)

I can’t find any AS3 examples of this.

Can someone please help me with this?