Given that the lens itself isn't very expensive and that I had a not-insignificant desire to see how well this lens performs when paired with a modern Olympus E-P1, I decided to take a small risk and take the lens apart.
This lens is not terribly complicated, but with any operation like this, I recommend taking detailed notes.
Warning: I really have no idea what I'm doing here -- although this turns out successfully for me, you should follow these instructions at your own risk. Please do not do this with any lens you consider valuable -- it is quite easy for you to permanently damage your lens.
Step 1: Disassembling from the Back of the Lens
Step 2: Removing the Focusing Ring
Step 3: Removing the Rear Lens Element
First, find a pair of pliers and wrap the nose of the pliers with electrical tape to prevent the pliers from damaging or scraping the lens.
Then, grip the plastic piece holding the lens. Turn counter-clockwise to remove the plastic holder.
Finally, find either a suction cup or something sticky to use for pulling the lens out from its recess.