OScommerce config changes

1) Debit Card enabled on OScommerce Frontend, payment gateway already supports this on the backend. 2) HTaccess directory security review to check if directories are secure and not listing or open, etc 3) 3 minor error fixes, (a) Admin > orders gives error when selected and there are no orders (b) there is 1 order pending which does not display when I open 'orders' (c) replace '?' with € on all orders in the Admin section.