Hi Arbazz,
there's a couple of groups for Roland products, maybe they can help with questions on the sequencer, though they don't appear to be very active. http://www.daytonamusic.com/rag/

or there's the VA7 yahoo group.

I've actually got a VA7 , but haven't used it to any degree. I haven't even tried using the sequencer yet. On a quick glance it appears to function in 2 modes. A quick record type method,using the arranger facilities where you pick the style , press record, and away you go.

The other method is a full 16 track sequencer where you can actually do note by note editing etc, but I get the impression that you don't use this method when you actually want to record using the arranger, though. It appears to be more on the lines of a p.c. based sequencer.

I somehow get the impression it doesn't have a chord track like my kn7 or my pro did ie being able to step record a chord sequence and putting in the style parts etc to create a backing track.

Maybe you can ask some of these questions of the group.

Sorry that I can't be of more help.

best wishes
Rikki