Re: OS X Beta install "Cannot find install information"
In order to get the updates, you need to register with the beta/AppleSeed programs to get an AppStore redemption code - which is then managed via the Mac AppStore. If the OP got a copy of the installer, it will not install unless the AppStore account has the beta associated with it. As far as I remember, that has always been the case.
Originally Posted by warcraftWidow
And with the AppleSeed program you have to go through the registration process with each new "dot" release (10.10.3, 10.10.4, 10.11, etc).