Hi,
I'm not quite sure I can really help, but if you can expand on a few things I'll try:
does the data in the accounts package have to be continuosly updated, or only periodically (ie once a day)?
is the only data you need to get for the accounts package stored in the MySQL database?
what file formats will the accounting package import (ie csv)? Or does the accounting package have an API for external programs to interface with it?
Don't know how much help I can be, but I saw that no-one else on the forum had answered you, so I'll give it my best shot!
All the best,
Louis