Sales Report by Salesperson
You have a few options for viewing sales info by salesperson.
1) You can run Income -> Reports -> Billing -> Summary of Invoices and for Order By choose Salesperson. This will give totals by salesperson on the report. You can also run the report and select a single Salesperson to view data for.
2) To see payments by salesperson go to Income -> Reports -> Billing -> Payment Report and choose a Salesperson to filter the report by.
3) If salespeople have commission rates set (see Income -> Sales Personnel), you can view sales amounts and commissions by going to Income -> Reports -> Billing -> Commissions. The salespeople will need to be assigned to invoices in order for the commission amounts to show.