There are installation instructions for articulation files at the Garritan Orchestral Strings site (www.gigastrings.com). Go to Support, Articulation File Updates. The page also has a description of what each of the articulation files includes (changes, additions, etc.) Maintenance files are strongly recommended. Others, like the all WARM library variation, depend on how you work and what you prefer.
The table of updates on the gigastrings site are headed by Dates of November and December, 2001 respectively. If I took shipment of GOS in January, were the first table of updates (non-WARM related) included, or should I download these?