Very tricky button question....PLEASE HELP

Ok so I don’t exactly know how to prep this question. I am trying to create a button with a rollover effect. This is how it works. I have an image with people on it and when you rollover a person that individual will light up. At first I set it so that each person was an individual layer on flash however that ended up taking up a lot of space. So to make things easier I am trying create a rollover of each person without actually having to put the image and more like a [FONT=Times New Roman]Silhouette[/FONT] of the image that will have a glow rollover effect.

When I tried to make a 100% transparent of the [FONT=Times New Roman]Silhouette[/FONT] of course you are not able to see the glow effect and also when I create an outline then you end up seeing the outline which looks bad.

Any suggestions???

to see an example of the site you can go to

www.dacircuit.com/test

What is loaded is the original way I did it and it runs too slow.