lost anchored data

Hello all, I installed the beta which went fine. Then I created an empty snapshot and rebooted to empty snapshot and got the error message that I was expecting missing ntldr so I put my vista beta disk in dvd drive and rebooted again. Installed vista everything appeared ok, but no fdisr so I downloaded the beta again and ran install which after I could see my all of my winxp snapshots so I ofcourse booted into one. Got a warning in red asking was I sure that I wanted to boot in requested snapshot because it cannot monitor two operating systems. After booting into winxp fdisr was disabled and all my anchored data was gone so I rebooted again and vista was gone? Any insight into this would muchley appreciated. Thanks for support