Well, vBActivity can't change its currency, but you can quickly import that for vBCredits to use by going to its currency manager, clicking to create a new currency, and selecting it from the dropdown wizard at the top. Then, go to the Points Settings in vBShop and change Points Field to dbtech_vbactivity_points and set Enable Points Accumulation to No. Done! At that point you can delete the Credits currency and stick with the Points from vBActivity. Also, you should generally only assign those Points within vBCredits to actions not covered by vBActivity, or else vBActivity won't be able to calculate its awards etc accurately.