Lost final cut files
I have recently upgraded to Mavericks from Lion on a Mac book Pro. All my files were getting mixed up and lost. I contacted apple care and we tried to copy my system hard drive to a separate La Cie Hard drive which is also used to store my Time machine back ups. Now my Time machine back ups are mostly missing and I get a media offline notice for all of myFinal cut files. I can render the projects but they are still invisible and apparently "offline. " The only files I have offline are the unedited tapes. TheFCP files were stored in the systems hard drive before we copied them to the La Cie. When I try to re connect to media the files are missing. However, surely they must be there somewhere since they take hours to render. If this doesn't make sense I am not surprised since it doesn't make sense to me either! However I am getting very good assistance from apple care but the advisor doesn't know anything aboiut final cut so we are stuck. Can any one tell us please How do we find my final cut pro files?
MacBook Pro (15-inch Mid 2010), OS X Mavericks (10.9), this took plworking with apple care