Thankyou for your help.
I tried:
SELECT tblLabour.Key, tblLabour.Job, tblLabour.WeekEnding, IIf([tblLabour].[EmployeeKey]=[forms]![frmAssyHours]![Employee1],[Time],0) AS T1, IIf([tblLabour].[EmployeeKey]=[forms]![frmAssyHours]![Employee1],[Time],0) AS TH1...