Hi,
I temporarily hacked my system for this...
sapphire\templates\FileIFrameField.ss
you can probably put this in you mysite templates folder to override it without affecting the "core"
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<% base_tag %>
<title><% _t('TITLE', 'Image Uploading Iframe') %></title>
</head>
<body>
<div class="mainblock editform">
$EditFileForm
</div>
<% if AttachedFile %>
<div class="mainblock">
<!-- start hack -->
<a href="$AttachedFile.Link" target="_new">$Name</a>
<!-- end hack -->
$AttachedFile.CMSThumbnail
<% if DeleteFileForm %>
$DeleteFileForm
<% end_if %>
</div>
<% end_if %>
</body>
</html>