sorry those guys aren't getting back to you on this....some folks don't regularly check the site, so they may not have seen your queries or they could just be ignoring you
based on one of my side turn signal lights that I replaced..
my guess is they took a long, thin drill bit to drill in to the orange piece at a few spots, so that they could break it up into pieces and then shook those bits out of there
why don't you experiment on your cracked open and condensation filled ones? , sounds like your seal wasn't so good.
did you bake them or just use an exacto knife to cut them apart? might use some better adhesive, like the kind they use for headlights instead of just superglue.
The other way condensation might be getting in is through the bulb harness itself. That has a seal that should fit tight against the light housing once it's put back into place and the adhesive/glue/seal has gotten too old as well.
the one I replaced the seal/glue/adhesive seemed to be going bad so it basically fell apart when I removed it from the car. I superglued it back together, but it didn't look good as the other side which seemed to be holding up well, so I bought a pair of replacements.