If you want to reference a table you're creating, use code like:
Code:
Dim Tbl as Table
....
Set Tbl = .Tables.Add(Range:=.Range.Characters.Last, NumRows:=1, NumColumns:=2, _
DefaultTableBehavior:=wdWord9TableBehavior, AutoFitBehavior:=wdAutoFitFixed)
With Tbl