there used to be an online tutorial for Aster Express under this adress: http://staging.asterdata.com/download_aster_expres
Unfortunatelly, it seems like the tutorial has been taken offline. Is the tutorial still available in some form? I have a hard time figuring Aster Express out without the tutorial and would therefore be very thankful for any help.
I don't know exactly what was covered by the tutorial, but there's a Getting Started Guide on the new Aster 6 download page: Aster Express 6.00.01 - 06 Oct 2014