jpg's becoming distorted in swf file

[Irishcash33]

Hi,
I have this xml driven image viewer. For some reason the jpgs when viewed are distorted. I didn't write the code, and can't figure out why the images are being distorted. Here is the link to the swf Click on the first thumbnail(reflective spiral) and you will see the large jpg distorted.
I pasted the code where I believe the sizing of the images happens. Any suggestions?
Thanks

buildGallery = function () {
    galleryTotal = xmlNode.childNodes[galleryID].childNodes.length;
    totalThumbs = maxThumbs
    maxPage = Math.ceil(galleryTotal/maxThumbs);
    pageNum();
    for (n=0; n<galleryTotal; n++) {
        Thumb[n] = xmlNode.childNodes[galleryID].childNodes[n].attributes.Thumb;
        Caption[n] = xmlNode.childNodes[galleryID].childNodes[n].attributes.Caption;
        Large[n] = xmlNode.childNodes[galleryID].childNodes[n].attributes.Large;
        Copy[n] = xmlNode.childNodes[galleryID].childNodes[n].childNodes[0].firstChild.nodeValue;
    }
    for (i=0; i<maxThumbs; i++) {
        num = i+(maxThumbs*page)-maxThumbs;
        if (num<galleryTotal) {
            item_mc.item.duplicateMovieClip("item"+i, i);
            ID = i+(maxThumbs*page)-maxThumbs;
            item_mc["item"+i].ID = ID;
            item_mc["item"+i]._x = (i%maxColumns)*(hSpace+thumbWidth);
            item_mc["item"+i]._y = Math.floor(i/maxColumns)*(vSpace+thumbHeight);
            item_mc["item"+i].num.text = ID;
            item_mc["item"+i].holder.loadMovie(Thumb[ID]);
            item_mc["item"+i].info_mc.txt_mc.txt.text = Caption[ID];
            item_mc["item"+i].info_mc.txt_mc.txt._height = item_mc["item"+i].info_mc.txt_mc.txt.textHeight+5;
            item_mc["item"+i].info_mc.bg._height = item_mc["item"+i].info_mc.txt_mc.txt._height;
            item_mc["item"+i].info_mc._y = thumbHeight-item_mc["item"+i].info_mc.bg._height;
        } else {
            item_mc["item"+i].removeMovieClip();
        }
    }
    item_mc.item._visible = false;
    item_mc._x = Math.round(_global.stageW/2-(((thumbWidth+hSpace)*maxColumns)-hSpace)/2);
    item_mc._y = Math.round(_global.stageH/2-(((thumbHeight+vSpace)*maxRows)-vSpace)/2);
};
// LOAD XML /////////////////////////////////////////////////////////////////////////////////
loadXML = function (loaded) {
    if (loaded) {
        xmlNode = this.firstChild;
        total = xmlNode.childNodes.length;
        Thumb = [];
        Caption = [];
        Large = [];
        Copy = [];
        buildGallery();
        for (n=0; n<total; n++) {
            menu_all.menu_mc.duplicateMovieClip("menu_mc"+n, n);
            menu_all["menu_mc"+n]._x = (menu_all.menu_mc._width+menuSpace)*n;
            menu_all["menu_mc"+n].categoryName.text = xmlNode.childNodes[n].attributes.Name;
            menu_all["menu_mc"+n].ID = n;
            menu_all["menu_mc"+n].num.text = subNum[n];
        }
        alignObjects();
        nav_mc._visible = true
        menu_all._visible = true
    } else {
        trace("Error loading XML");
    }
};
xmlData = new XML();
xmlData.ignoreWhite = true;
xmlData.onLoad = loadXML;
xmlData.load("content.xml");
stop();

[Irishcash33]

Update on code. here is where the large images are generated.

// ON IMAGE LOAD /////////////////////////////////////////////////////////////////////////////////
alignPic = function () {
	destWidth = holder._width;
	destHeight = holder._height;
	holder._x = (_global.stageW-holder._width)/2;
	holder._y = (_global.stageH-holder._height)/2;
	bg_mc.bg._width += (destWidth+border-bg_mc.bg._width)/5;
	bg_mc.bg._height += (destHeight+border-bg_mc.bg._height)/5;
	bg_mc.bg._x = holder._x;
	bg_mc.bg._y = holder._y;
	bg_mc._x = holder._width/2;
	bg_mc._y = holder._height/2;
	bttnNext._y = holder._y+(holder._height-bttnNext._height)/2;
	bttnNext._x = bg_mc._width+(_global.stageW-bg_mc._width)/2-bttnNext._width-border/2;
	bttnPrev._y = holder._y+(holder._height-bttnPrev._height)/2;
	bttnPrev._x = (_global.stageW-bg_mc._width)/2+bttnPrev._width+border/2;
	preloader._x = holder._x+holder._width/2;
	preloader._y = holder._y+holder._height/2;
	info_mc._x = holder._x;
	info_mc._y = holder._y+holder._height-info_mc._height;
	info_mc.bg._width = holder._width;
	info_mc.txt.htmlText = _parent.Copy[ID];
	info_mc.txt._width = info_mc.bg._width-20;
	info_mc.txt._x = info_mc.bg._x+10;
	info_mc.txt._height = info_mc.txt.textHeight+10;
	info_mc.bg._height = info_mc.txt._height+20;
	info_mc._x = holder._x;
	info_mc._y = holder._y+holder._height-info_mc._height;
	header_mc._x = holder._x;
	header_mc._y = holder._y-50;
	header_mc.pageName._x = holder._width-header_mc.pageName.textWidth;
};
alignPic();