Yeah I get it, I should have looked at the date on the post. However looking over search statistics from my website and others about ray casting, I think it's important to provide answers for the sake of good reference. Google never sleeps when it comes to data mining, that combine with the fact that most information on Pie in the Sky related software is becoming increasingly scarce. This is why my post even if past due is still important. My response may never help "dookie4991", however the point is that the information here can be referenced in the future. For whoever needs access to it.
Raycast engines in all forms fascinate me. Doom just happen to be the one that stole the limelight. GCS was a great tool for the few that remember it.