Stuck in secure url's

Hi, there. I'm new to NetSuite and trying to find my way around.

I think what's happening is that when someone views their cart, the system gives them a secure connection. Then, since the links (like login, logout, and view cart at the top) are relative, all of their url's are secure from then on. Since some of the images in the site use absolute addresses to refer to them, they're not secure and we get the "some items on this page are unsecure" message.

Does anyone know how to edit those links at the top to make them absolute so they're http instead of https (or do you know if it's a bad idea to do that)? They are hard coded into some of the pages, but are automatically generated on product pages so there must be a header file or template somewhere.