I'm trying to use more than 10 values to plot in a cube, but I can't figure out how... could someone please help?!

I'm using andypope.com's,

scatter plot file.

And I need to extend the following;
- xyz data values
- formula that calculates new xy position
- the chart series data range

...But where is 'the chart series data range??'

And could someone explain what this means?:
"To have named data labels you need to link any new data labels to cells.
This free addin will help with that.
http://www.appspro.com/Utilities/ChartLabeler.htm
"

What is a 'named data label?'
Is that 'one, two, three...?'
I actually want to get rid of the 'one, two, three...' attached to the points in the cube; does anyone know how?
Thanks a bunch