Here's macro for labelling XY charts.

but it only works for the the first series (you can reorder the
series)
and the labels have to be in the column (the data have to be in
colums), to the left of the X-axis.

but it works in 007

http://support.microsoft.com/kb/213750

Sub AttachLabelsToPoints()

'Dimension variables.
Dim Counter As Integer, ChartName As String, xVals As String

' Disable screen updating while the subroutine is run.
Application.ScreenUpdating = False

'Store the formula for the first series in "xVals".
xVals = ActiveChart.SeriesCollection(1).Formula

'Extract the range for the data from xVals.
xVals = Mid(xVals, InStr(InStr(xVals, ","), xVals, _
Mid(Left(xVals, InStr(xVals, "!") - 1), 9)))
xVals = Left(xVals, InStr(InStr(xVals, "!"), xVals, ",") - 1)
Do While Left(xVals, 1) = ","
xVals = Mid(xVals, 2)
Loop

'Attach a label to each data point in the chart.
For Counter = 1 To Range(xVals).Cells.Count
ActiveChart.SeriesCollection(1).Points(Counter).Ha sDataLabel = _
True
ActiveChart.SeriesCollection(1).Points(Counter).Da taLabel.Text =
_
Range(xVals).Cells(Counter, 1).Offset(0, -1).Value
Next Counter

End Sub