In the mean time you should swap them, (put the brake on the clutch and viceversa, I noticed mine were wearing on opposite corners, so I swapped them, if they're wearing at the center part, you're out of luck. :?
I 'believe' that you can get metal covers for the Insight pedals from Momo - ISTR seeing some on their website a year or so ago. Might be worth taking a look.
I should mention that the metal covers pictured in the other post were a prototype made by the same folks who originally produced the foot rests - they have since closed up shop.
Honestly, I just haven't had enough interest in the metal pedal covers to see if the folks that currently manufacture the footrests for me would be able to reproduce them.