Direct Translation for the image above;
사기 - Buy
스탬프 특전 - Stamp Benefits
팔기 - Sell
상품 받기 - Receive Item
Direct Translation for the image above;
소재로 구입 - Purchase with Material (Craft it)
제니로 구입 - Purchase with Direct (Without Crafting, expensive)
엑스트라 구입 (소재) - Extra Purchase (With Material)
엑스트라 구입 (제니) - Extra Purchase (Direct)
Pic Above: These are Stamps that you receive from buying deco/furniture.
Use theses to upgrade your farm; to view the guide, go here
http://www.onrpg.com/boards/129962.html
Right Click on the highlighted Storage box as shown above, to view the options below
Thats it!
Feel free to add more info on this or ask question and ill see if i can answer them.