Thanks for asking.
You may have found answers for your first question.
No—Your order hasn't been processed.
ST—Your order is processing.
WT—We are out of stock now. We will deliver goods to you as soon as possible.
IN—We have made a partial delivery. The rest is being rearranged.
WL—We can make the delivery now. Please contact us to receive the items you purchased.
PWL—We can complete your order now. Please contact us to receive the balance of your order.
IR— 1. We are ready for your delivery, please login the game and notify us via email or livechat. 
       2. We cannot find the character name on the server you submitted, please contact us soon. 
       3. Please set up the auction as soon as possible.
Fini—Your order has been finished.
 
Besides, I have checked your order and it has been finished by Online bazaar trade. Would you please check? Usually we can complete an order within hours. If you are anxious to know your order status, you can contact us by phone, email or livechat.
Don't worry even if your order status changes from ST to WT. In fact, it may changes into IR quickly.
Thank you very much for trusting us and seeking help from us. If there is any other problem, please feel free to contact us for help.
Remember, the forum is always the place where you can seek help as well as pleasure.