Exchange database problem

I have a problem with mounting the Mailbox Store and Public Folder Store databases. I used the eseutil command:
eseutil /p /i
but I get the message:
Error: Access to resource database failed with Jet error -1811. Operation terminated with error -1811 after 0.16 seconds.

I displayed the databases by going to the MDBDATA directory and confirmed the existence of the ff. databases: priv1.edb, pub1.edb,and pub1.stm

I tried to do a Restore using NTBackup but the the previous administrator did a corrupted backup and so it did not restore properly. Meaning to say I have no backup of the databases!

What are my options right now in order to solve this problem?