Update… (Someone tell me if this is wrong or not though) :
What I wanted was to have the blocks in the left column show in this order “CART” / “COMPARE” / “LAYERED NAV”
Default, the Cart block is in a separate XML file, so I moved it into the InitLayout.xml file for Categories. The file now reads as follows:
<block type="catalog/product_compare_sidebar" name="catalog.compare.sidebar">
<block type="checkout/cart_sidebar" name="cart_sidebar" before="-">
This solved the problem.. but I’m not quite sure its how it was supposed to be done. And I’m still not sure what before="-" means. Can anyone elaborate?