Horizontal Menu - Submenu position

Question

I have delayed the new version of my site because I was
looking for the solution, but now, I couldn't wait anymore and it
is online with the following problems on the horizontal menu bar:
1- On IE, the submenus' position is wrong and becomes
vertical when mouse is hovering.
2- On all browsers (those I could test, at least) the second
level of submenus appears above the first level, hiding it. (see
"amateur" submenus for exemple)
My website: www.thebaysoccer.com
in case it helps, I copied the css below.
Thanks in advance for your help! Sorry if the question looks
stupid, but I'm learning and I didn't know anything about HTML when
I started the site...Any help would be appreciated!
@charset "UTF-8";
/* SpryMenuBarHorizontal.css - Revision: Spry Preview Release
1.4 */
/* 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: 12px;
cursor: default;
width: auto;
font-family: "Arial Rounded MT Bold";
/* 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: 12px;
position: relative;
cursor: pointer;
width: auto;
float: left;
white-space: nowrap;
/* 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
padding: 0;
list-style-type: none;
font-size: 100%;
z-index: 1020;
cursor: default;
width: auto;
position: absolute;
left: -1000em;
/* 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;
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
width: 10em;
background-color: transparent;
/* Submenus should appear slightly overlapping to the right
(95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
position: absolute;
/* 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: #333;
padding: 0.5em 0.75em;
color: #EEE;
text-decoration: none;
text-align: left;
/* 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: #ef3121;
color: #000000;
width: auto;
/* 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: #ef3121;
color: #000000;
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-image: url(SpryMenuBarDown.gif);
background-repeat: no-repeat;
background-position: 95% 50%;
width: auto;
/* 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-image: url(SpryMenuBarRight.gif);
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-image: url(SpryMenuBarDownHover.gif);
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-image: url(SpryMenuBarRightHover.gif);
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;
/* 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: #333333;

Answer 1

Anybody can help?