I've been using Acronis for years its good, if you BackUp your whole drive (C) with BiaB in it and transfer over to new machine should be no worries with authorization etc. Just to be safe de-authorize the current BiaB before doing so.
If your just doing acronis BiaB tib from windows you will need all the other files that goes with windows and thats a pain in the fingers.


Windows7 x64 Ultimate, Sound Blaster ZxR