We just got our new imac, 20 inch screen 2.0gb..our HP laptop died a horrible death..so we luckily saved all the photos ,files, etc on a kaser Regen svault external hard drive..now we've managed to plug it in and imac has recognized it and created a icon..but how do we download all the info.??.i've tried the links thru applictions and utilities but it seems like it won't open..does it need to be reformatted and how do we do that??...such newbies! Please be patient with us and spell it out..thanks so much