This is possible, however the import/export capabilities from each version are a little different and so are the configuration for some stuff as new capabilities are added and new mandatory fields are necessary.
BAT will give you a lot of info, you'll need to do an export from 8.X and compare it to the 6.X/7.X files to make sure all the fields 8.X needs are there. If not, you'll need to add them in order to make them valid files for 8.X
HTH
java
If this helps, please rate
www.cisco.com/go/pdihelpdesk
HTH
java
if this helps, please rate