PayPal Website Payments Pro (US) Direct Payments
PayPal Express Checkout
PayPal Website Payments Standard
PayPal Website Payments Pro (UK) Direct Payments
PayPal Website Payments Pro (UK) Express Checkout
All I want is to be able to take PayPal from all over the world - which one of the above will do this? Do I need all of them enabled or just one?
For the PayPal Website Payments Pro (US) Direct Payments it asks for an API username, pwd and signature - what are these? Are they the same as your paypal login and pwd?
For PayPal Website Payments Pro (UK) Direct Payments and PayPal Website Payments Pro (UK) Express Checkout, my password is visible in the Admin panel - how secure are my paypal detailed stored in OSCommerce, can they be accessed by hackers?
Finally, I gather if I set everything to "Sandbox" I can get my testers to make "pretend" payments, and the money won't be deducted?
Thanks all

