@jenop2, up through Wednesday, I was able to edit the hourly cost rates by going to the project -> time activity -> and selecting the individual timesheet that was needing the cost rate to be edited.  Yesterday, I followed those same steps, and instead of it opening a new overview that gave me the employee's name, project name, cost rate, length of time, billable or not, billable rate, and notes/description, a window popped up on the side instead.  This pop-up window was very similar to what comes up when selecting an invoice under the invoice tab.  The message on this window was "timesheet has been approved and locked, to make changes, please un-approve the time", and gives the details from QBT, instead of what used to come up.  I'm attaching a picture of what I now am getting.