There seems to be a few bugs with this hack.
1. The preview image is pulled in from
http://www.e-steki.com/forum/modules/wallpreview.php and not your own site.
2. The block
adv_portal_wallpreview template needs adjusting because the title is hard-coded into the template and doesn't work via editing the module settings.
Apart from those issues it works fine!
Clicked Install