The FinMetrics module is currently available within Splus on Darkwing. However, to enable Splus to access Finmetrics functions, you first need to give the following instruction at the Splus prompt:
module (finmetrics)
Full documentation for FinMetrics can be found in the S+FinMetrics Reference Guide, available in the Computing Center Documents Room Library on the ground floor of McKenzie Hall in Room 175. You'll also find some FAQs online at http://www.insightful.com/support/finmetrics10/default.asp