It's a scam. Do not use the red cross to close this down or any other option. Instead use the Ctrl+Alt+Delete option to end task. I would suggest that you run an antispy ware program to check your system.
Clear out all your temp file directories and cookies etc with CleanUp click here or cCleaner click here but make sure you know all your website passwords as these will be erased if you clear all cookies.
If you are still being redirected to todaywarnings when you open ie after clearing your cache then post back.
This thread is now locked and can not be replied to.