I was pondering, and this MAY work. I tested and it doesn't throw an error, but I don't know if it will actually work with data. Change these lines to:
stLinkCriteria = "employeeID = " & Me.employeeID
DoCmd.OpenForm stDocName, , , stLinkCriteria, , , Me.dateAdded
Then put this in the load event of the DARsubform:
Me.Filter = "dateAdded = #" & Me.Parent.OpenArgs & "#"
Me.FilterOn = True