Conditional Widget for Custom Post Types

I have a series of widgets that will only appear in a specific post/pages.

Custom Post: News (Page)
slug: news

then, the widget doesn’t appear in a single articles from the custom post News.

http://oi46.tinypic.com/jt0xnl.jpg

Even I follow the reference http://www.thinkupdesign.ca/2011/04/29/widget-logic-and-subpages/ – it doesn’t show 🙁