Not too clear on what your asking.
As long as you install the xml plugin you will have all required links and likewise if you look at the plugin you generate under the navigation section you see all the various links and how they are formatted. The upload link is simply a link to uploadproduct.php
The only stylesheet our product uses for our stuff in vb4 is photopost.css in your template manager.
I am just saying if your having issues with importing the navigation links from the plugin into your vb
it might be because you have edited the navbar template when you are not suppose to be doing that. That is the point I made in my last reply.
Given the fact I have not yet received any specific info about the issue all I can do is throw out ideas.