Serious Problem - Please Help!

The game kept on messing up so i attempted to reinstall the **** and it gives me the error:1706. No valid source could be found for product ESFBeta. The Windows Installer cannot continue. Then it goes on the mention Erorr: -1603 Fatal error during installation. Can someoneplease help?

yeah thats a problem with the installer that greg made, I have made a new installer for people who's installer isnt working, right here.

http://www.modstrike.com/files/esf/Setup.exe

enjoy!