[support] changing the display of the breadcrumb trail in blog module

Hi, I was wondering if it's possible to alter this function in the blog module, so that it displays a custom field from the user's profile instead of the user name of the user: <?php function blog_view($node, $teaser = FALSE, $page = FALSE) { if ($page) { // Breadcrumb navigation $breadcrumb[] = array('path' => 'blog', 'title' => t('Blogs')); $breadcrumb[] = array('path' => 'blog/'. $node->uid, 'title' => t("@name's blog", array('@name' => $node->profile_displayName))); $breadcrumb[] = array('path' => 'node/'. $node->nid); menu_set_location($breadcrumb); } return node_prepare($node, $teaser); } ?> Any help would be great! Sarah