Is this website using zen-cart?

Is this website running off of zen cart?
http://www.roomsandthings.com/Reclining-Sofas-c-4883_4773_4777.html

I really like how it has the attributes in the navigation on the left, that they change based on the current selections. If the site is not zen-cart can zen-car do that?

Also what I like is how it has on this page the related links. That is shows thumbnails of some of the products:
http://www.roomsandthings.com/Exhilaration-Chocolate-2-Seat-Reclining-Sofa-Signature-Design-4240181-p-105251.html?cPath=4883_4773_4777

Thanks

It's not Zen Cart.

The effect can be achieved in Zen Cart by using the linked categories feature and then setting up the categories box to be open by default (I've done this before but can't remember how I did it, but there are posts in the forum about this if you search).

The expanded categories under the search box could be done with Uncollapsed Categories Tree, packaged as an option with Categories Dressing. Then you could use the regular categories sidebox to display only the current top category's subcats; it would require some custom tweaking in the Cat Dressing files to apply different rules to the two menus, but not a big deal.