Q:

Accounting Management Solution

Well, my question is about Accounting Management. 
I have a system already, it's work fine, but now I need to control the follow intems. 

ACCOUNTS RECEIVABLE (My Invoices)
ACCOUNTS PAYABLE
SETTLE ACCOUNTS
CASH FLOW
GENERAL LEDGER
FIXED ASSETS
PAYROLL

On ACCOUNTS RECEIVABLE I have all my invoice system. 
The rest, I need to work on it. 
Is this the right way to start a new accounting module? 
Does Anybody have a good source of knowledge about accounts? 

A:

Yes.  Go that way, really fast.  If something gets in your way ... turn.