Hi rkalidh87,
I archived and purged tickets on my test box with r14.1 and found that once tickets are archived, the attachment data also moved from Attachment table to a specified Archive File. If you look at the archive file, you would be able to see the Attachment table information as well as Call_Req table data, and it shows "ARCHIVED" as a status.
In order to restore the archived tickets and associated Activity logs and attachments, you need to run:
pdm_load -f archive_file_name
Then follow the steps of TEC531305 to change the status of the attachment file, and move the physical file back from attachment archive folder to the original attachment repository folder.
Hope the above helps.
Kaori