PHP links on differnt levels ?

I am using PHP Includes on several different levels of a site. I have got all
of the left nav bars <and there are several>to link correctly by coding the
different levels for each category and including the leftnev specific to the
category in the file. Here is the problem. I am using headers and footer
includes on every page. It seems that depending on the level parsed, the links
think they live on that level and will not call the next page (i.e., home,
etc.). I know there have to be a work around.

~b

use Site Root relative paths for links and images that are IN the included
files.

It seems that depending on the level parsed, the links
think they live on that level and will not call the next page

thanks, I trie that approch first and it did not work because of some know reason but now it does.