caurina tween on addchild

[Rohm]

AS3/CS6

I'm making tabs for each page depending on how many frames my loaded swf has.
Added caurina tweener and the first one which flikMC uses works fine but when creating tabs on the fly
I get output error:
like this

## [Tweener] Error: [object MovieClip] raised an error while executing the 'onComplete'handler.
TypeError: Error #1010: A term is undefined and has no properties.
at vt_story_loader_fla::MainTimeline/makePages()
at vt_story_loader_fla::MainTimeline/activateExitBtn()
at Function/http://adobe.com/AS3/2006/builtin::apply()
at caurina.transitions::Tweener$/updateTweenByIndex()
at caurina.transitions::Tweener$/updateTweens()
at caurina.transitions::Tweener$/onEnterFrame()

function makePages():void{
	var moveDist:Number=0;
	var tabMC = new Array();
	Tweener.addTween(this.flikMC, {alpha:1, "x":this.flikMC.x+24 , time:.9, delay:1.5, transition:"easeOutElastic"});
	
for (var doPages:int = 1; doPages<=totFrames; doPages++) {
	tabMC[doPages] = new  sidnrMC();
	this.addChild(tabMC[doPages]);
	tabMC[doPages].x =-80;
	Tweener.addTween(this.tabMC[doPages], {alpha:1, "x":this.tabMC[doPages].x+24 , time:.7, delay:.8, transition:"easeOutElastic"});
	moveDist=moveDist+42;
	tabMC[doPages].y = moveDist;
}

Any ideas?