Main Class Not Found. Program will exit.

I Have downloaded 0010 and 0009 for windows and unzipped them but when I open arduino.exe but it comes up with this message:
Any Help?

Does the run.bat file work? When you unzipped the files, was the folder structure preserved (i.e. there should only be a few files and folders directly inside the Arduino application directory)?

Yay...
Thanks sooo much
Will i have to open it like this forever or will arduino.exe now work?
Thanks again