okay, glad you like smarty ...its cool
template order: rectangle_top.tpl/home.tpl/head.tpl/home_main.tpl/categories.tpl/subcategories.tpl/products.tpl/product.tpl/help.tpl/rectangle_bottom.tpl is a good start
links: should be: home.php?cat=103
images: use a relative url and make sure those files are in the secure area aswell otherwise you will get the security warning.
With your existing experience of smarty you will find it relatively easy to pick up the way that the templates slot together - if in doubt switch on the debug templates in the general settings of the admin centre and all will become clear.
