I finally solved this by using the code from another EE solution at:
http://www.experts-exchange.com/Microsoft/Development/MS_Access/Access_Forms/Q_23187018.htmlcapricorn1, I used your code below to cycle through the labels, and I added some code to figure out the "parent.name" which apparently is the name of the "control" associated with the label. This allowed me to figure out that the other similar labels were associated with the Form (named: frmCalendario"), then I used this code: ctl.Parent.Name = "frmCalendario"
to set (or "associate"), the label with the Form.
Dim ctl As Control
For Each ctl In Me.Controls
If ctl.ControlType = acLabel Then
Debug.Print ctl.Name
MsgBox ctl.Name
If Left(ctl.Name, 9) = "lbldia132" Then
Debug.Print ctl.Name
Debug.Print ctl.Parent.Name
ctl.Parent.Name = "frmCalendario"
End If
Next