stumped on yucky parse error

[Antivirus]

I have to call multiple instances of the postbit_attachmentthumbnail template from within the adminCP (crazy, i know)

I am calling it like this:

PHP Code:

while ($attachment = $db->fetch_array($attachments))
{
    // ... display each thumbnail
    $thumbs .= "
        <a href=\"attachment.php?".$session['sessionurl']."attachmentid=".$attachment['attachmentid']."&amp;d=".$attachment['dateline']."\" target=\"_blank\">
        <img class=\"thumbnail\" 
            src=\"attachment.php?".$session['sessionurl']."attachmentid=".$attachment['attachmentid']."&amp;stc=1&amp;thumb=1&amp;d=".$attachment['thumbnail_dateline']."\" 
            border=\"0\" 
            alt=\"
            <phrase 
                1=\"".$attachment['filename']."\" 
                2=\"".$attachment['counter']."\" 
                3=\"".$attachment['filesize']."\" 
                4=\"".$attachment['attachmentid']."\"
            > 
                ".$vbphrase['image_larger_version_x_y_z']."
            </phrase>
            \"
         />
        </a>
        &nbsp;".iif($show['br'], "<br /><br />")."
    ";
}
print_description_row($thumbs, 0, 6, '', 'center'); 


however i'm not getting the results i need ( see attached "yucky.gif" )

It's something to do with closing the image tag i'm pretty sure. I've been on this for 3 hours now and starting to get brainfry or brainfart.