Ken:
Don't waste your time with VB. You can do this in Tools,
Customize, Fields. All you need to do is learn the
calculation syntax. If you've used Excel in the past,
the syntax is essentially the same. Project is quite
kind in providing tools to make building calcs much
easier. Again, use the help files provided in Project to
ease the process. To assign a stoplight, use the
graphical indicator button on the custom field dialog box.
Good Luck!