Access to Backup Files on Ministation Stealth HD-PCT500U2/B

[chuckieb22]

My computer with Microsoft XP home editioon died.  I had files backed up on a Ministation Stealth external drive.  I bought a new computer with Windows 8.  When I try to access my backup files on the Ministation I get a message that I need permission to access the files.  I didn't set u any special security provisions when the backups were made.  I do have a new user name on the new computer. Any help or suggestions will be greatly appreciated.  Many thanks in advance.