I had no idea how the NP_CatShow works until I understand the template of a skin, I tried to put in on the sidebar.inc and it didn't work, on the skin templates, there's index & item which we put the vars and they both seem to work. Anyhow, NP_CatShow is to show the list of the items in the current selected category. If we put the var on the index/item footer, then it will show at the bottom of each item at the display page. As the instruction on the plugin page the author recommended to put at the "item template/item footer". We want to see how it display when the var is placed at the "index template/item footer".

Now we need to place the <%CatShow%> at the item footer of the index template of every skin that we want to use, where is the item footer of index/item templates?

Edit the index template of the skin

Update the template and look at the blog, everything should show up at the bottom of each item (item footer)

Well, we looked at the index page , every page shows up to 10 titles after the end of each item, which are too busy looking, although... ... the reader can see the titles of the category before reading any, I think putting the vars in the "item templates" as the author suggested is what it was meant to be, Now we need to remove the var from the "index templates/item footer" and place it in "item templates/item footer"

Voila, after an item is read, it show the list of 10 newest items in the category for reader to select if they like and the page looks cleaner.

Cheers,