Articles show in the same page

Hello

I'm using News Show Pro GK4 (NSP) in Joomla! 1.5 and 2.5.
In Joomla! 1.5 works as I expected: when you clic in an article collected by News Show Pro, you go to the page of the article.
In Joomla! 2.5 sometimes works like that and in other times the article shows in the same page below the module of NSP.
Example in Jommla! 2.5
http://www.nwdtrips.com/jupgrade.
In the first page "Inicio" there is a NSP module with title: "Paquetes destacados". Clicking in any K2 article there, you will go directly to that article.
If yo click the menu item "Paquetes" you go to another page where the same module of NSP is shown. Clicking there in any article thumbnail you will see that the article appears below the module.
I don't figure out what is going on, specially because in Joomla! 1.5 it always behave the same.
¿Any help?
Thank you
Regards
Jose

Hi
In http://www.videomultimedia.tv/portal we have same problem. If you click on item of left menu, the article open in same window below module. I want it to be opened in another window. Can help me?

Hi
The solution is to create a menu item for every item that you display in News Show Pro module, without this Joomla! can't build full URL path to article page.