lost backup certificate- help!

[Guest Tonyguk]

hi. i have vista ultimate and office enterprise running on my machine. one of

my RAID array drives failed so i reinstalled on the remaining drive. Now my

USB flashdrive which contains the security certificates for my work folder

has crashed as well.

 

Its the same machine (al be it with a different drive setup), the same vista

and office installation etc.

 

Is there any way i can access my data? any suggestions gratefully received.