En primer lugar muchísimas gracias por contestarme. Aqui te pongo los códigos:
El slide de imágenes:
//Specify the slider's width (in pixels)
var sliderwidth=335
//Specify the slider's height
var sliderheight=55
//Specify the slider's slide speed (larger is faster 1-10)
var slidespeed=1
//Specify the slider's images
var leftrightslide=new Array()
var finalslide=''
slidebgcolor="#FFFFFF"
leftrightslide[0]='<a href="http://www.iespana.es/primeratoma/peliculas/rey_arturo.htm"><img src="http://www.iespana.es/primeratoma/slides/slide_1.jpg" border=0></a>'
leftrightslide[1]='<a href="http://www.iespana.es/primeratoma/peliculas/thunderbirds.htm"><img src="http://www.iespana.es/primeratoma/slides/slide_2.jpg" border=0></a>'
leftrightslide[2]='<a href="http://www.iespana.es/primeratoma/peliculas/yo_robot.htm"><img src="http://www.iespana.es/primeratoma/slides/slide_3.jpg" border=0></a>'
leftrightslide[3]='<a href="http://www.iespana.es/primeratoma/avances/avance_3.htm"><img src="http://www.iespana.es/primeratoma/slides/slide_4.jpg" border=0></a>'
leftrightslide[4]='<a href="http://www.iespana.es/primeratoma/peliculas/seabiscuit.htm"><img src="http://www.iespana.es/primeratoma/slides/slide_5.jpg" border=0></a>'
leftrightslide[5]='<a href="http://www.iespana.es/primeratoma/vhs_dvd_bso.htm"><img src="http://www.iespana.es/primeratoma/slides/slide_6.jpg" border=0></a>'
var copyspeed=slidespeed
leftrightslide='<nobr>'+leftrightslide.join(" ")+'</nobr>'
var iedom=document.all||document.getElementById
if (iedom)
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100;left:-3000">'+leftrightslide+'</span>')
var actualwidth=''
var cross_slide, ns_slide
function fillup(){
if (iedom){
cross_slide=document.getElementById? document.getElementById("test2") : document.all.test2
cross_slide2=document.getElementById? document.getElementById("test3") : document.all.test3
cross_slide.innerHTML=cross_slide2.innerHTML=leftr ightslide
actualwidth=document.all? cross_slide.offsetWidth : document.getElementById("temp").offsetWidth
cross_slide2.style.left=actualwidth+4
}
else if (document.layers){
ns_slide=document.ns_slidemenu.document.ns_slideme nu2
ns_slide2=document.ns_slidemenu.document.ns_slidem enu3
ns_slide.document.write(leftrightslide)
ns_slide.document.close()
actualwidth=ns_slide.document.width
ns_slide2.left=actualwidth+20
ns_slide2.document.write(leftrightslide)
ns_slide2.document.close()
}
lefttime=setInterval("slideleft()",30)
}
window.onload=fillup
function slideleft(){
if (iedom){
if (parseInt(cross_slide.style.left)>(actualwidth*(-1)+8))
cross_slide.style.left=parseInt(cross_slide.style. left)-copyspeed
else
cross_slide.style.left=parseInt(cross_slide2.style .left)+actualwidth+3
if (parseInt(cross_slide2.style.left)>(actualwidth*(-1)+8))
cross_slide2.style.left=parseInt(cross_slide2.styl e.left)-copyspeed
else
cross_slide2.style.left=parseInt(cross_slide.style .left)+actualwidth+3
}
else if (document.layers){
if (ns_slide.left>(actualwidth*(-1)+8))
ns_slide.left-=copyspeed
else
ns_slide.left=ns_slide2.left+actualwidth+3
if (ns_slide2.left>(actualwidth*(-1)+8))
ns_slide2.left-=copyspeed
else
ns_slide2.left=ns_slide.left+actualwidth+3
}
}
if (iedom||document.layers){
with (document){
document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
if (iedom){
write('<div style="position:relative;width:'+sliderwidth+';hei ght:'+sliderheight+';overflow:hidden">')
write('<div style="position:absolute;width:'+sliderwidth+';hei ght:'+sliderheight+';background-color:'+slidebgcolor+'" onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed">')
write('<div id="test2" style="position:absolute;left:0;top:0"></div>')
write('<div id="test3" style="position:absolute;left:-1000;top:0"></div>')
write('</div></div>')
}
else if (document.layers){
write('<ilayer width='+sliderwidth+' height='+sliderheight+' name="ns_slidemenu" bgColor='+slidebgcolor+'>')
write('<layer name="ns_slidemenu2" left=0 top=0 onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed"></layer>')
write('<layer name="ns_slidemenu3" left=0 top=0 onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed"></layer>')
write('</ilayer>')
}
document.write('</td></table>')
}
}
Y el scroll de noticias es este:
var tickercontents=new Array()
tickercontents[0]='28/07/2004. Pierce Brosnan no volverá a ser James Bond.'
tickercontents[1]='08/08/2004. Muere a los 96 años, Fay Wray la chica de "King Kong".'
tickercontents[2]='09/08/2004. "Collateral" lo nuevo de Tom Cruise, lidera la taquilla americana.'
//configure the below 2 variables to set the width/background color of the ticker
var tickerwidth='450'
var tickerbgcolor='black'
var ticketcolor='white'
//configure the below variable to determine the delay between ticking of messages (in miliseconds
var tickdelay=4500
////Do not edit pass this line////////////////
var currentmessage=0
Gracias.
que no se ve uno de ellos (el slider). No tengo mucha idea de ésto, e intentado investigar he descubierto que si quito uno de ellos el otro se ve, pero los dos a la vez no. A ver quien sabe porque es y que solución tiene. 
