recover EFS files ???

hi,

vista ultimate

my vista drive no longer boots after i had to replace motherboard and ended
up with a new & different chipset. i have installed vista on a new drive and
am copying data from old drive. all is going well except for some files i
had encrypted with EFS. when trying to copy these, i am told i do not have
permission to access. drag & drop just gave me empty folders. any help ???

thanks,
mike.