The macros I have are very client specific, i.e. the client uses certain locations, categories, optional fields and so on and unless your setup is the same they will not run. Besides everyone has their own idea of how to calculate the order quantities.
There are no resources for learning Accpac macros, the best starting point is to record a macro in Accpac and disect it. Accpac generates VBA (Visual Basic for Applications) code and this is similar to VB6, so if you know either then it is a walk in the park.