What do these parts do?

Hi I baught my first super 8 camera today im used to the flash digital cams... i need to know what some of the parts do since im totally lost... the camera is a sankyo super 5x and i need to know what the parts labeled do exactly.
http://members.iinet.net.au/~corkill...emp/angle1.jpg
http://members.iinet.net.au/~corkill...emp/angle2.jpg
http://members.iinet.net.au/~corkill...emp/angle3.jpg
a. appears to be zoom or something but then i think c controls zoom aswell?
b. appears to be some sort of frame speed it is labeled "slow motion"
c. same as a?
d. could be exposure? it has auto, man'l and clamp.

can anyone else help out?

a) Could be your macro control.
b) I'm not sure what your are pointing at. The small light or the switch. That looks like the main run button.
c) Is your zoom control.
d) Is too dark to see...