HI,
I guess you need this:
http://www.digidesign.com/products/dvtoolkit/index.cfm
for OMF/EDL and post production.
when the sound is on the DAT it is already digitized. There should be a SPDIF out that letīs you transfer the audio to the MBOX with a 48KHz, 16bit session.
also searching your PT reference guide for "Playlist" might give some useful results.
regs