1. Use the Quick Search bar to find the Listing or the Contact. 

Go to the Trust Accounts tab on the left side of the screen

From the list of transactions, use the action buttons to send the receipt by email or print. 

OR 

2. If you know the Receipt number but not the Listing address go to the Finances Menu>Trust Accounts. Go to the Recent Activity tab and you will see all the transactions in date order and you can see the receipt numbers. Use the action buttons on the right side of the line to reprint or email the receipt.