A shot history.
I had a Toshiba Satellit Pro 480 with PST 2 software and the Porsche diagnostic card that died. Couldn't get it fixed and couldn't find another. I had some documentation showing a Thinkpad 600E with PST 2 on it. Found a 600E on Ebay, and swapped hard drives. Thinkpad didn't like the Toshiba drive. Contacted several forums and friends for help. Many emails, phone calls, transfer of Toshiba drive contents and visits over many months,
Received a drive for the Thinkpad with ms-dos 6.22, Windows 3.11 and PST 2 v24 that recognizes the Diagnostic card.
Thinkpad now boots up PST 2.
Ed B