[cctalk] Overland Data Depot4 application

Greetings! Based on the comment in a message posted last fall, I downloaded and installed the Overland Data Depot4 software that was mentioned during a discussion of SCSI tape tools.  But so far I've been stumped in getting it to work.   Basic system is a freshly set up Win98SE and an Adaptec 1522 SCSI board connected to a Qualstar 9track.  Depot4 installs and runs without issue but when I try to point it at the ASPI drivers it fails to recognize anything.  Any suggestions on where to look or what to tweak would be seriously appreciated! Steve