The Cakewalk Plugin Manager DID overlay the older scanner, but that was - to the best of my knowledge - the only component that was forced to go to a new version. All else was kept separate.
As scook indicated, a reinstall of X3e will put the older version of the scanning utility back in place for you.
Additionally, that reinstall process is not a particularly lengthy process to do - a matter of minutes, really, so it is a reasonable solution, and in this case, the best one.
I am additionally wondering if your computer has all Windows Update maintenance applied, and if not, I would suggest you consider getting it up to date on maintenance.
Bob Bone