Artika The Bastet on "Paginate reply on any pages same articles...."

Hi,

I've found this code

http://wordpress.org/support/topic/automatic-split-long-post-into-multi-page?replies=9

and its works greatly on my normal pages showing (by a plugin) the exact number of pages in the bottom.
In subpages, which any show a list with thumbails of post from a different category (also by a plugin), the function show 10 pages in the bottom and any page contain only articles 12 to 3.

Help? :)