For the clients:
You cant know the password for any client but you can reset or change it by right click on that client in the Accounts Tree and choose Editthen edit office/client,in the password field you will find stars, replace it with new password then submit.

For the dealers:
You cant know the password for any dealer but you can reset or change it by going to the Dealers Tree then choose Edit, in the password field you will find stars, replace it with new password then submit.