9.8.2 is not supported anymore. But, are you using 9.8 on the other machine to try and access the drive as secondary disk? If not, it will probably not let you do anything with it.
I would suggest you send me a message with your details, company name, order#, customer# what ever support information you have and I'll see what we can do...
in the meantime run the following commands and record the output as well:
Go to a command prompt and issue:
cd C:\Program Files\PGP Corporation\PGP Desktop
pgpwde --enum
Find the disk that is listed as encrypted
Then issue:
pgpwde --disk (disk id from last command) --list-users
Then:
pgpwde --disk (disk id) --status --show-config
Thanks,
Ben