Problème javascript / IE

Bonjour,
j'ai trouvé un script pour une galerie photo en style "slideshow",
tout se passe bien sous safari, firefox et IE 9 mais à partir de IE 8 rien ne va.
Quelqu'un pourrait-il m'aider à trouver une solution pour que cela fonctionne aussi sous IE 8 et 7 ?
Le slide marche mais j'ai les images qui apparaissent avec une croix rouge en dessous.

Je vous remercie d'avance

<div id="slider" style="margin-top:-20px;">
			<ul>
				<li><img src="images/08_01_photo.jpg" width="930" height="490" alt="" /></li>
				<li><img src="images/08_02_photo.jpg" width="930" height="490" alt="" /></li>
				<li><img src="images/08_03_photo.jpg" width="930" height="490" alt="" /></li>
				<li><img src="images/08_04_photo.jpg" width="930" height="490" alt="" /></li>
                <li><img src="images/08_05_photo.jpg" width="930" height="490" alt="" /></li>
				<li><img src="images/08_06_photo.jpg" width="930" height="490" alt="" /></li>
				<li><img src="images/08_07_photo.jpg" width="930" height="490" alt="" /></li>
				<li><img src="images/08_08_photo.jpg" width="930" height="490" alt="" /></li>
                <li><img src="images/08_09_photo.jpg" width="930" height="490" alt="" /></li>
			</ul>
		</div>

var TINY={};

function T$(i){return document.getElementById(i)}
function T$$(e,p){return p.getElementsByTagName(e)}

TINY.slider=function(){
	function slide(n,p){this.n=n; this.init(p)}
	slide.prototype.init=function(p){
		var s=T$(p.id), u=this.u=T$$('ul',s)[0], c=T$$('li',u), l=c.length, i=this.l=this.c=0;
		if(p.navid&&p.activeclass){this.g=T$$('li',T$(p.navid)); this.s=p.activeclass}
		this.a=p.auto||0; this.p=p.resume||0; this.v=p.vertical||0; s.style.overflow='hidden';
		for(i;i<l;i++){if(c[i].parentNode==u){this.l++}}
		if(this.v){;
			u.style.top=0; this.h=p.height||c[0].offsetHeight; u.style.height=(this.l*this.h)+'px'
		}else{
			u.style.left=0; this.w=p.width||c[0].offsetWidth; u.style.width=(this.l*this.w)+'px'
		}
		this.pos(p.position||0,this.a?1:0)
	},
	slide.prototype.auto=function(){
		this.u.ai=setInterval(new Function(this.n+'.move(1,1)'),this.a*1000)
	},
	slide.prototype.move=function(d,a){
		var n=this.c+d, i=d==1?n==this.l?0:n:n<0?this.l-1:n; this.pos(i,a)
	},
	slide.prototype.pos=function(p,a){
		clearInterval(this.u.ai); clearInterval(this.u.si);
		var o=this.v?parseInt(this.u.style.top):parseInt(this.u.style.left),
		t=this.v?p*this.h:p*this.w, d=t>Math.abs(o)?1:-1; t=t*-1; this.c=p;
		if(this.g){for(var i=0;i<this.l;i++){this.g[i].className=i==p?this.s:''}}
		this.u.si=setInterval(new Function(this.n+'.slide('+t+','+d+','+a+')'),50)
	},
	slide.prototype.slide=function(t,d,a){
		var o=this.v?parseInt(this.u.style.top):parseInt(this.u.style.left);
		if(o==t){
			clearInterval(this.u.si); if(a||(this.a&&this.p)){this.auto()}
		}else{
			var v=o-Math.ceil(Math.abs(t-o)*.1)*d+'px';
			this.v?this.u.style.top=v:this.u.style.left=v
		}
	};
	return{slide:slide}
}();

.sliderbutton {float:left; width:32px; padding-top:240px}

.sliderbutton img {cursor:pointer}

.sliderbutton img:hover {color:#F00}

#slider {float:left; position:relative; overflow:auto; width:930px; height:490px; margin-left: 30px;}

#slider ul {position:absolute; list-style:none; top:0; left:0;}

#slider li {float:left; width:1100px; height:490px; padding-right:10px; margin-left:-20px; margin-right: 20px;}

.pagination {float:right; list-style:none; margin:18px 0 0 32px}
.pagination li {float:right; cursor:pointer; background:#000; height:10px; width:10px; margin-left:10px; text-align:center; }
.pagination li:hover {background:#F00; color:#000}
li.current {background:#F00}

[/i][/i]