Try to write {$Path:item.url} inside your sections, but outside your concat, to see if you get a correct value. If not, you've got your problem there...
Yes, I get the right value outside {concat but it seems to be the |ezurl which strip the node-number from my urls.
{$Path:item.url} generates /content/view/full/117
..but inside the concat this is what I get: http://mywebsite.com/ezpublish/index.php/mydesign/content/view/full/
Not quite sure how to fix this though, but I noticed this thread. Maybe the same problem:http://www.ez.no/developer/ez_publish_3/forum/setup_design/ezurl_strange_error_