I've compiled a brief pdf manual from the images and notes from the various forum discussions on how to set up a TDI mapping run in Probe Image. See attachment (login to see attachments).
Hope you find it useful.
Edit by John: Thanks, Mike! I'll sticky this topic so it can be found easier. For others just FYI there is a topic also on this subject here:
https://smf.probesoftware.com/index.php?topic=609.0