In order for your project's employees to be able to track their hours, they'll need to first be invited to the project.  The employees have already been entered into the project via paper start work.  

To Invite an Employee: 

Step 1: Click EMPLOYEES on the left, then select MANAGE.

Step 2: Click SEND INVITE in the Actions column.

Step 3: Enter the role and the email address. NOTE: You can only assign roles that your login currently is assigned as well.  If the employee should only be able to create timecards, invite them with the role of EMPLOYEE.

Step 4: Click INVITE.

The Employee will receive an email containing a link to create his/her password.