Fail to show Categories with a module on frontpage

I tried to follow the tutorial which enable to add a module displaying a listing of categories on the frontpage ( www.hikashop.com/support/documentation/6...ml#categories_module ). I created module in Hikashop with Type = Category, Layout = List, and choose a position (like user1), but it did not show the list of categories on the frontpage.

If I created a menu link to categories listing and I clicked the link, it showed correct.

Yes, I turned the Synchronize with currently displayed item when possible option to No.
And set Parent Category to my main product category. But it was the same.
The joomla version I used is 1.5.20. The position I set is user1, with default template.

Here they are.

Thank you very much. It works now