1) Interbank Guarantees liquidy to $10,000,000
2) When the equity markets are open, and when there are economic news releases. Here are the times for when the markets are open:
http://www.paulcweb.com/market/Default.htm
3) Every release is an important one. I try to watch them all. Most importnat? Unemployment.
4) Im having trouble with stops in interbank as well so I dont use them LOL
5) I dont pay attention to the tiem but I think its in the settings tab.