I've been trying to do this in CS5 using AS3 (There are no spaces in the actual code in the word "hitTestObject", i don't know why it's displaying them in the quotes):

addEventListener(Event.ENTER_FRAME, checkCollision);

function checkCollision(event:Event) {
if(this.text_mc.textinsert_mc.stress1.hitTestObjec t(hitbox_mc)) {
stress_txt.text = "stress";
} else if(this.text_mc.textinsert_mc.stress2.hitTestObjec t(hitbox_mc)) {
stress_txt.text = "stress";
} else if(this.text_mc.textinsert_mc.stress3.hitTestObjec t(hitbox_mc)) {
stress_txt.text = "stress";
} else if(this.text_mc.textinsert_mc.stress4.hitTestObjec t(hitbox_mc)) {
stress_txt.text = "stress";
} else if(this.text_mc.textinsert_mc.stress5.hitTestObjec t(hitbox_mc)) {
stress_txt.text = "stress";
} else if(this.text_mc.textinsert_mc.unstressed1.hitTestO bject(hitbox_mc)) {
unstressed_txt.text = "unstressed";
} else if(this.text_mc.textinsert_mc.unstressed2.hitTestO bject(hitbox_mc)) {
unstressed_txt.text = "unstressed";
} else if(this.text_mc.textinsert_mc.unstressed3.hitTestO bject(hitbox_mc)) {
unstressed_txt.text = "unstressed";
} else if(this.text_mc.textinsert_mc.unstressed4.hitTestO bject(hitbox_mc)) {
unstressed_txt.text = "unstressed";
} else {
stress_txt.text = "";
unstressed_txt.text = "";
}
}
but I keep getting the error:
Error #1010: A term is undefined and has no properties.
at srr_fla::MainTimeline/checkCollision()[srr_fla.MainTimeline::frame1:4]
I have the main movie timeline with 1 frame that has 2 layers (as3 and content) and there's a movieclip of the text motion tweening followed by a movieclip that has each individual word as a movieclip, each with its own instance name.

It worked when I had the motion tweening on the main timeline, taking up 120 frames, but I wanted to clean it up better on the main timeline since I'd also be adding the activityLevel later on to detect if the person was speaking at the moment when the stressed word would pass over the hittest.

I didn't realize there was an AS3 thread until after I posted it in here, so if a mod could relocate this over to the AS3 thread, I'd appreciate it, unless it's easier to do in AS or AS2.