What a mess. I used Yahoo as a news source and search engine. This new format essentially makes it impossible. Three scrolling frames? Seriously? If your intent was to keep people on the Yahoo home page, it succeeded as it now takes a LOT more time to read it. Ultimately it will backfire as it's really too dis-jointed to serve any legitimate purpose.
Here's a suggestion: Makes SMALL changes - see how your users respond, and if you get positive feedback, keep/modify it, then go on to the next thing. People really HATE big changes - like this.