AS 3 ... add Alpha transparency overlay.

[CamDesigns]

Hello,
I was wondering if any one could help me with this?
I am using Caurina tweener classes to control animation of a jpg.
On the layer above it I would like to control the intensity of red.
I created a layer above it called red and made it into a movie clip.
now to control its alpha.... here is what I have now ...

import caurina.transitions.*;
import caurina.transitions.properties.FilterShortcuts;
import caurina.transitions.properties.ColorShortcuts;

//initialize the shortcuts
FilterShortcuts.init();
ColorShortcuts.init();

function animate()

{
Tweener.addTween(about_mc, { 
                 time:5, 
                 x: 794,
                 y:344,
                 height:926,
                 width:1526,
                // x: 506,
                // y:210,
                // height:426,
                // width:1026,
                _Blur_blurX:25,
                _Blur_blurY:25,
                transition:"easeInCubic"
                
                
                 });
}
animate();