Transfer 32 bit to 64 bit

Having a few dilemmas:
Current install (Vista Ultimate 32 bit) is (why?) on drive G:. Not
everything installed correctly (HP OfficeJet AIO, for example;
discovered that it occupies drive C. I have a new drive and want to
transfer most of stuff (settings, files, programs) from drive G: to
drive (hopefully) C:. Also, I was thinking about have on drive C: 64
bit. I have akready saved drive G: images (Acronis - Backup & Migrate
Easy).
1. First question - 32 bit image will be accepted on 64 bit?
2. What about registry? Most of programs entries refers to drive G:.
Is ther any way to have progras moved ready to use (withaut manually
replacing all references from G: to C:? Laplink is advertising move
programs without pain, but I'm not sure.
I don't want to screw up something - lokking for advise about safe
procedure.
I adked for advise Acronis but they are not reponding...
I'll appreciate any usefull tips/ideas.
Peace.
Marek Kalisz