Thanks for testing, trying and reporting!
>I tried using the JBST theme, but unfortunately our server don't server
> has not allocated enough memory and had errors using it.
I don't understand the memory problem. Maybe something become in a loop. I will be happy to know the errors, so i can fix them. Please post your issues about JBST on: https://github.com/bassjobsen/jamedo-bootstrap-start-theme/issues
>I then tried using Customizr theme and still it doesn't display >properly, although I'm guessing that it is because Customizr doesn't >declare WooCommerce support.
You could easy add WooCommerce support to Customizr.
make a copy of custom-page.php to woocommerce.php. In this file replace the post-loop with
<?php woocommerce_content(); ?> as described on http://docs.woothemes.com/document/third-party-custom-theme-compatibility/
Unfortunately after doing this the plugin still don't work as expected, see: http://mystile.w3masters.nl/?post_type=product
Customizr use Twitter's Bootstrap v2. I can't find out it also used the latest 2.3.2 version. I will test more v2 theme later. If there is an issue with TB v 2.3.2 i will try to fix this a.s.a.p.