I bought Yt Mega K2 Items II, installed perfectly and configured correctly to my knowledge.

But it will not show items in K2 Sub-Categories, only Parent Categories.

How can I fix this?

In the description for the module it says:
"SJ Mega K2 Items II supports two levels for user choice: parent category and sub category."

But I need it to read sub-subcategory.

Ex.

Category
-------------Subcategory
------------------------------Sub-subcategory
------------------------------------------------------Item

I would appreciate the developers to help fix this issue.

I am running joomla 1.5 with k2 v2.5.

Dear Hendrik Dercksen

In this case, you have to choose two levels:
-------------Subcategory
------------------------------Sub-subcategory

Please try to check

Thanks