From any page in the tractFile application a Menu is displayed on the left side of the page. To navigate to the Invoices or Vouchers mentioned click the Transactions category which will drop down a list of subcategories. From the dropdown list select either Invoices or Vouchers to bring up a grid of all records for that subcategory.
Vouchers (Also take a look at the Automatic Voucher Generation Process)
Invoices (Also take a look at the Automatic Invoice Generation Process)
Each subcategory also contains another dropdown pertaining to the status of the records. Selecting one of the status items will open up a grid with only records that are of the same status.