Hi, ark19 requested for pics of this flash, so I thought I'd just put them here for anyone who may be interested as well.
Nothing much at the back: main switch, flash power-ready indicator, test light, dial-illuminate button, tilt angle, zoom head
The dial that controls much of the flash exposure. The outer ring sets the ISO, inner one controls the aperture. The 4 colour codes indicate the 4 power range. This dial also shows the flash range (in ft and m), and helps to determine flash power in manual mode as well.
The vario-power dial at the bottom, lets you set the power range (coded in colour), and controls flash power in full, 1/2, 1/4, 1/16. I believe the exposure meter is also there.