Hard Drive Copying Problem

I'm upgrading my computer to a 500gb hard drive. I've tried copying the
Vista drive with 2 different programs but can't the drive to boot. Here is
my setup. I have 2 hard drives, one with Vista and the other with XP. I dual
boot using Vista Boot Pro 3.3. I copied the drive booting to XP and then
using Drive Image XML. The drive copied fine. I added this to the boot
options in Vista Boot 3.3 listing it as Vista#2. When I pick it to boot from
a series of error messages stating that windows can't verify the digital
signature on vital files in system32. This also occurred after I copied the
drive with Hdclone 3.2. I've looked through the readme files and can't find
anything on this problem. A Google search also came up with nothing. Any
help would be appreciated.