1. You will find that in customer/top_menu.tpl
1b. Remember, you can only use font families that exist on your computer. Arial, Times, Serif, etc. Make sure you have specified the font correctly in CSS. You had the right style.
2. skin1/main/prnotice.tpl
4. Yes, that is because it is pre-formatted text. There is a nice mod in the Custom Mods section for making this look better.
5. Open Include/search.php and remove this line:
Code:
"productcode" => func_get_langvar_by_name("lbl_sku"),