I was wondering if it's possible for and "Admin" to alter the amount of a members credits?
I want to be able to add to members credits but I don't want to have to deplete my own
credits in order to add to theirs.
Sure, go to the admin section of your forum, and click on 'Members' Inventory' (under Shop Administration). Enter in the user's username, and it will show you how much money they have, both in their pocket, and in the bank. Just change that to whatever you want
Also....is there a way to alter the the amount of credits it takes to buy something?
Yes, Shop Administration --> Edit/Delete Items. Choose the item, and you can edit the price.