Mage_CatalogSearch_Helper_Data into my own class and am using it to retrieve a collection of products that have specific manufacturer part numbers. I then display the matching products on a custom category page.
I want to now add the catalog search layered navigation to my custom category page, so I extended the
Mage_CatalogSearch_Block_Layerclasses. I overwrote
getProductCollection method to get the collection created by my helper file.
How do I now include this block in my custom category template?