[F8] How to move a MovieClip with Ease In/Out tween using Actionscript

Question

In Flash 8, I need to move a MovieClip from point A to point
B when a user clicks a button.
I currently have a function which I pass three arguments:
TargetX, TargetY, and the Duration (in frames). I have it working
to move the clip linearly, however, I would really like to be able
to ease in/out on the tween.
I'm really stuck on the math of it all and need someone to
give me the formula.
Here's my function:
Code:
// Function which is called when user clicks button to move
the mc
_global.fMoveTheMovieClip = function(iTargetX, iTargetY,
iDuration){
// Calculate the distance to the Target position
iTotalDistance = iTargetX - MoveThisClip_mc._x;
// Mover function
MoveThisClip_mc.onEnterFrame = function(){
// If the movie clip has gotten close enough to the target
if((Map_mc._x > iTargetX && Map_mc._x <
(iTargetX + 1)) || (Map_mc._x < iTargetX && Map_mc._x
> (iTargetX - 1))){
// Snap the movie clip to the target x
MoveThisClip_mc._x = iTargetX
// And stop this function
delete this.onEnterFrame;
// Else, if the mc has NOT reached the target zone
}else{
// Move the clip
// This is where I would like a formula to ease out then in
based on the duration
// Right now I have this to move the mc at a constant speed
MoveThisClip_mc._x += (iTotalDistance / iDuration);
Also, everything needs to be AS2 compatible.
AND, I can't use the "tween" or "transitions" classes.
So, please don't post anything with code similar to this:
Code:
import mx.transitions.Tween
import mx.transitions.easing.*;
If I need to add a "power" or "strength" argument to my
function, that's fine.
Thanks!!!!

Answer 1

I'm thinking what I want isnt possible...
Here is what I get.
Its perfect for landscape.
But when I use the same settings on a portrait, I get this
The entire canvas should be portrait.  If I flip it, then the watermark is under the image instead of on the right hand side going up like on the landscape one.
The portrait one should end up looking like this
I know this is being picky, but I'm taking over running photo and reviews for a media, and we have 4-5 photographers (myself including) covering shows.  So I'm looking for a one click to export and bam everything is fine type of thing. 
So it's like the canvas would need to be portrait for portrait photos and landscape for landscape photos, and keep the name on the lower right regardless.  I'm thinking LR isnt that smart just yet to say "add 1 inch and put logo down here on all images" lol
But I totally appreciate your input.