Welcome to SubSim Matey....by far the safest and best way is to purchase a recently manufactured disc because they come Starforce free and already patched to 1.4b.
I'm unaware of your location but if it happens to be in the UK, this is as good a version as any:
http://www.amazon.co.uk/Silent-Hunte.../dp/B000FUCGDY
If you purchase it through the Amazon link on this forum Neal our host will receive a small commission which he would appreciate because it helps the upkeep of this great forum.