Hi Jake,
Thanks for the info on the lenses. There is one entry for the Vivitar zoom, here;
Vivitar 80-200mm F4 MACRO FOCUSING ZOOM MC Lens Reviews - Vivitar Lenses - Pentax Lens Review Database
With your ME Super, both lenses will be manual focus, manual aperture.
For auto shutter speed (Aperture Priority), set the mode dial to "Auto". Now, as you change the aperture, the shutter speed will automatically change to compensate. For example, if the correct exposure at f/4.0 requires a shutter speed of 1/60s, changing the aperture to f/2.8 will change the shutter speed to 1/125s. By opening the lens one full stop, you're letting in twice as much light. This means the shutter speed should be increased 100% (twice as fast).
In "M" mode, you must set aperture AND shutter speed manually. The little up + down buttons next to the mode dial control shutter speed.
With a Digital body, the Vivitar zoom will work in Auto or Av mode differently. On the aperture ring, next to f/22 (or whatever the highest aperture value is) will be a little button. By pressing this button and turning the aperture ring PAST the highest f/stop (one click) it will lock into "Auto".
Now the f/stop can be controlled by a thumb-wheel on the body and the shutter speed will change to match it. This is equal to a Pentax "A" lens.
The fifty won't work in this auto mode, it's one series older than the "A". But it will still work manually on any newer body, as an manual focus, manual aperture and manual shutter speed lens.
Next, the green button! If you get a digital body, let us know and we'll try to help!
Ron