Spry Drop Down menu issue in IE

Question

I created a menu bar with Spry and it works fine in Firefox
but playing up in IE. The drop down menu starts displaying from the
top of the page and not where the menu bar is. I have never come
across this issue with Spry and cannot figure out whats wrong. the
page is www.cerdomustile.com.au/new if you want to have a look. the
Spry code is:
@charset "UTF-8";
/* SpryMenuBarHorizontal.css - version 0.6 - Spry Pre-Release
1.6.1 */
/* Copyright (c) 2006. Adobe Systems Incorporated. All rights
reserved. */
LAYOUT INFORMATION: describes box model, positioning, z-order
/* The outermost container of the Menu Bar, an auto width box
with no margin or padding */
ul.MenuBarHorizontal
margin: 0;
padding: 0;
list-style-type: none;
font-size: 11px;
cursor: default;
width: 500px;
background-color: #000000;
font-weight: normal;
font-family: "Trebuchet MS";
height: 18px;
/* Set the active Menu Bar with this class, currently setting
z-index to accomodate IE rendering bug:
http://therealcrisp.xs4all.nl/meuk/IE-zindexbug.html
ul.MenuBarActive
z-index: 1000;
/* Menu item containers, position children relative to this
container and are a fixed width */
ul.MenuBarHorizontal li
margin: 0;
padding: 0;
list-style-type: none;
font-size: 11px;
position: relative;
text-align: left;
cursor: default;
width: 100px;
float: left;
background-color: #000000;
font-weight: normal;
font-family: "Trebuchet MS";
height: 18px;
/* Submenus should appear below their parent (top: 0) with a
higher z-index, but they are initially off the left side of the
screen (-1000em) */
ul.MenuBarHorizontal ul
margin: 0;
padding: 0;
list-style-type: none;
font-size: 100%;
z-index: 1020;
cursor: default;
width:100px;
position: absolute;
left: -1000em;
height: 18px;
/* Submenu that is showing with class designation
MenuBarSubmenuVisible, we set left to auto so it comes onto the
screen below its parent menu item */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
left: auto;
height: 18px;
position:absolute
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
width: 100px;
/* Submenus should appear slightly overlapping to the right
(95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
position: absolute;
margin: -5% 0 0 95%;
/* Submenu that is showing with class designation
MenuBarSubmenuVisible, we set left to 0 so it comes onto the screen
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
ul.MenuBarSubmenuVisible
left: auto;
top: 0;
DESIGN INFORMATION: describes color scheme, borders, fonts
/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
border: 1px solid #CCC;
/* Menu items are a light gray block with padding and no text
decoration */
ul.MenuBarHorizontal a
display: block;
cursor: pointer;
background-color: #000000;
padding: 0.5em 0.75em;
color: #FFFFFF;
text-decoration: none;
/* Menu items that have mouse over or focus have a blue
background and white text */
ul.MenuBarHorizontal a:hover, ul.MenuBarHorizontal a:focus
background-color: #000000;
color: #FFF;
/* Menu items that are open with submenus are set to
MenuBarItemHover with a blue background and white text */
ul.MenuBarHorizontal a.MenuBarItemHover, ul.MenuBarHorizontal
a.MenuBarItemSubmenuHover, ul.MenuBarHorizontal
a.MenuBarSubmenuVisible
background-color: #000000;
color: #625647;
SUBMENU INDICATION: styles if there is a submenu under a
given menu item
/* Menu items that have a submenu have the class designation
MenuBarItemSubmenu and are set to use a background image positioned
on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenu
background-repeat: no-repeat;
background-position: 95% 50%;
/* Menu items that have a submenu have the class designation
MenuBarItemSubmenu and are set to use a background image positioned
on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenu
background-repeat: no-repeat;
background-position: 95% 50%;
/* Menu items that are open with submenus have the class
designation MenuBarItemSubmenuHover and are set to use a "hover"
background image positioned on the far left (95%) and centered
vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenuHover
background-repeat: no-repeat;
background-position: 95% 50%;
/* Menu items that are open with submenus have the class
designation MenuBarItemSubmenuHover and are set to use a "hover"
background image positioned on the far left (95%) and centered
vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenuHover
background-repeat: no-repeat;
background-position: 95% 50%;
BROWSER HACKS: the hacks below should not be changed unless
you are an expert
/* HACK FOR IE: to make sure the sub menus show above form
controls, we underlay each submenu with an iframe */
ul.MenuBarHorizontal iframe
position: absolute;
z-index: 1010;
filter:alpha(opacity:0.1);
/* HACK FOR IE: to stabilize appearance of menu items; the
slash in float is to keep IE 5.0 from parsing */
@media screen, projection
ul.MenuBarHorizontal li.MenuBarItemIE
display: inline;
f\loat: left;
background: #FFF;
}

Answer 1

No one has any ideas? Someone had mentioned to me that it was
some hybrid code that would have to be inserted to make IE read
differently that Safari, Firefox. Not sure how to go about finding
the code I'd need, though.
Thanks in advance,
Burt