Fist, the menu link goes to a "home page" describing fictitious products (which I'm not sure how you're supposed to configure that, it was no where in the manual).
Never saw the products.
I added the category module, and my categories showed up as urls, that weren't even click-able.
Went to their website to the forum to try to get some answers and forum is down for maintenance. I then uninstalled and am moving on to something else.
As far as we are aware of there are no known issues with XOBBIX. XOBBIX was fully tested before it was released.
If you had any issues you could have sent us an email through our ticket system (http://www.php-shop-system.com/support/index.php?_m=tickets&_a=submit) and receive a prompt reply with a resolution to your issue.