Magento not recognizing custom Topmenu.php - magento

Question

I have built a custom module to enable changing the Topmenu link text based on a custom attribute in the backend.
The module was tested on Magento CE 1.7.02 and works 100%.
Now I am testing on Magento EE 1.12.02 and the menu is not recognizing the rewritten Topmenu class (As-in, I can remove everything from the file, and/or mis-spell the class name in the XML and there are no errors, and the site loads fine).
Something tells me that Enterprise Edition pulls this menu from a different location than Community Edition, but I cannot find the place.
Here is the relevant portion of my config XML:
<blocks>
<page>
<rewrite>
<html_topmenu>WorldSynergy_Seoadditions_Block_Html_Topmenu</html_topmenu>
</rewrite>
</page>
</blocks>
And here is the Topmenu.php class:
class WorldSynergy_Seoadditions_Block_Html_Topmenu extends Mage_Page_Block_Html_Topmenu
{
/**
* Recursively generates top menu html from data that is specified in $menuTree
*
* #param Varien_Data_Tree_Node $menuTree
* #param string $childrenWrapClass
* #return string
*/
protected function _getHtml(Varien_Data_Tree_Node $menuTree, $childrenWrapClass)
{
$html = '';
$children = $menuTree->getChildren();
$parentLevel = $menuTree->getLevel();
$childLevel = is_null($parentLevel) ? 0 : $parentLevel + 1;
$counter = 1;
$childrenCount = $children->count();
$parentPositionClass = $menuTree->getPositionClass();
$itemPositionClassPrefix = $parentPositionClass ? $parentPositionClass . '-' : 'nav-';
foreach ($children as $child) {
$child->setLevel($childLevel);
$child->setIsFirst($counter == 1);
$child->setIsLast($counter == $childrenCount);
$child->setPositionClass($itemPositionClassPrefix . $counter);
$outermostClassCode = '';
$outermostClass = $menuTree->getOutermostClass();
if ($childLevel == 0 && $outermostClass) {
$outermostClassCode = ' class="' . $outermostClass . '" ';
$child->setClass($outermostClass);
}
$childId = explode( "-" , $child->getId() );
$childId = $childId[2];
$attrs = Mage::getModel("catalog/category")->getAttributes();
$altName = $attrs['ws_menutitle']->getFrontEnd()->getValue( Mage::getModel("catalog/category")->load( $childId ) );
if( empty($altName) ){ $altName = $child->getName(); }
$html .= '<li ' . $this->_getRenderedMenuItemAttributes($child) . '>';
$html .= '<a href="' . $child->getUrl() . '" ' . $outermostClassCode . '><span>ABC'
. $this->escapeHtml($altName) . '</span></a>';
if ($child->hasChildren()) {
if (!empty($childrenWrapClass)) {
$html .= '<div class="' . $childrenWrapClass . '">';
}
$html .= '<ul class="level' . $childLevel . '">';
$html .= $this->_getHtml($child, $childrenWrapClass);
$html .= '</ul>';
if (!empty($childrenWrapClass)) {
$html .= '</div>';
}
}
$html .= '</li>';
$counter++;
}
return $html;
}
}

Answer 1

I'm in 1.11.1.0, but I believe the same exact thing is happening.
If you look at app/design/frontend/base/default/layout/page.xml, you'll see that the top.menu block is missing the page/html_topmenu block that CE has.
<block type="core/text_list" name="top.menu" as="topMenu" translate="label">
<label>Navigation Bar</label>
</block>
Then, in app/design/frontend/base/default/layout/catalog.xml, they're inserting the catalog navigation block into the top.menu block:
<reference name="top.menu">
<block type="catalog/navigation" name="catalog.topnav" template="catalog/navigation/top.phtml"/>
</reference>
Strange that they did all of this in app/design/frontend/base, and not app/design/frontend/enterprise.