Vista - transfering files from rocketfish using Easy Transfer

Help! My motherboard died on my old computer, so I took the hard drive out
of the old and put it into a rocketfish and tried using the Easy Transfer to
get them onto my new computer. It put a .mig copy of the old computer files
on my new computer but I can't use them. What now? When I run Easy Transfer
again it just keeps creating copies on the rocketfish.