So someone already shorted the sense inputs to the voltage outputs, so you don't need to worry about the sense lines unless you want to remove the shorts and use the sense lines. You will get better regulation of you connect the sense lines up to the load of the power supply, but you might want to get things working first.
For the ac inputs, neutral is the wider blade
http://en.wikipedia.org/wiki/NEMA_connectorThe ps doesn't appear to care, so I would connect neutral to the left ac input, hot to the right one.
If you use a 3 prong plug, ground wire goes to the ground symbol.
And output is V- and V+.
I would hook up the ac, and check the voltage output with a meter before connecting it to anything.
BTW, we have power supplies at work with screw terminals on the back like this.
EDIT: After thinking about it, I would recommend using a three prong plug and connect ground for safety
Randy