Hey Everyone!

I'm having a bit of an issue. I'm trying to set-up the header/logo image to link to an external page. I'm pretty sure it's located in the tpl_header file, specifically in the code listed below.

Code:
<div id="logo"><?php echo '<a href="' . HTTP_SERVER . DIR_WS_CATALOG . '">' . zen_image($template->get_template_dir(HEADER_LOGO_IMAGE, DIR_WS_TEMPLATE, $current_page_base,'images'). '/' . HEADER_LOGO_IMAGE, HEADER_ALT_TEXT) . '</a>'; ?></div>
I tried just adding the URL in the href line, but it doesn't seem to be working.

Does anyone have any other suggestions?