INTRALINK File Recovery

[TCGT]

A PRT file was accidentally deleted from commonspace and I am trying to determine the best way to recover it. We have tape back-ups;however, the filenames on the tape back-up do not coincide with the filenames used in INTRALINK. Is there a restore function within INTRALINK commonspace? Is there a way to decypher (sp?) the names that INTRALINK puts in the vaults?

I know the part is there but I can't figure out the name that INTRALINK renamed it to.

Any help you can provide would be appreciated.