If you're off-line, you can't read a full news article on the desktop Mobireader. After the first paragraph, the software is geared to take you to the article's website.
But the full article does exist in */ebooks in *.prc files b/c they're copied over to a the mobile device upon sync.
By installing freeware FBReader, a light-weight e-reader, you can read these full .prc files:
http://www.fbreader.org/win32
Although not listed at fbreader's site, W2K will install and run the app. Dunno about Win9*
Jake