Hi there,
To get an authorisation code for the old Stitcher versions, please send an email to stitchersupport @ autodesk.com
The information required is:
* product version
* serial number, in the xxxx-xxxx-xxxx-xxxx format
* hardware ID, help - activate - activate offline
Please note that this only applies to the old (pre-2009) versions!
Stitcher Support