Mac User frustrated with GPGT book.

HELP!!! Nobody seems to be "minding the store" at Torque Game Engine Public Area>>BooK: Game Programmer's Guide to Torque>>Topic:GPGT Chapter 14 - Issues and Questions.

I recently purchased The Game Programmer's Guide to Torque. It looks as though it has a lot of useful stuff in it.

I'm a newbie and very frustrated.
I am working on an iMac G5 with Torque DemoOSX-1-4
I'm trying to get the prototype to work.

On page 576 -
14.4.4 Modify "main.cs" it says:

Next, edit "main.cs and change line 6 from this:

$defaultGame = "demo";

to this:

$defaultGame = "prototype"

This will use our new "prototype" mod instead of the demo mod.

Question 1
I can't find a "main.cs" that has $defaultGame = "demo"; anywhere in it's script.
Where can I get It?

14.4.5

I've added the new code to \MazeRunner\prototype\main.cs so it looks like this:

function onStart()
{
// Maze Runner changes Begin -->
exec("./EGSystems/SimpleInventory/egs_SimpleInventory.cs");
exec("./EGSystems/SimpleTaskManager/egs_SimpleTaskManager.cs");
exec("./EGSystems/Utilities/egs_ArrayObject.cs");
exec("./EGSystems/Utilities/egs_Misc.cs");
exec("./EGSystems/Utilities/egs_Networking.cs");
exec("./EGSystems/Utilities/egs_SimSet.cs");
exec("./EGSystems/Utilities/egs_String.cs");
// <-- Maze Runner Changes End

Parent::onStart();

This is what I have in my MazeRunner directory so far:

\deldso
\delml
\prototype
\Torque Demo OSX
\Torque ShowMod

This is what I have in prototype directory:

\client
\data
\EGSystems
\main.cs
\server


Question 2
What should I have in each directory (file) to make the prototype work and where can I find it?
It is damn hard for a beginner to get a grasp of this material if he can't get to square one. Don't I need an executable in the first directory(MazeRunner)? Where is it?
Should I assume I need the "main.cs" (which I can't find) in the \MazeRunner directory along with "prototype & Torque Demo OSX"? The book does not tell me to add anything else to execute the test run.

Question 3
How can I get MRA to run on my Mac?
I downloaded MRA from the author's website. I can't get the zip files to unarchive. I get a dialog box that says:

Unable to unarchive "common.zip" into "desktop". (error 78 - function not implemented)

I thought by looking at MRA it would help me understand what is needed in "prototype"
alas, nothing seems to work.

Question 4
In the GPGT LessonKit there appears to be an executable "gpgt.exe". When I double-click on it I get a dialog box that requests an application. Shouldn't this start the demo?

If anyone can help me, my eMail is kenmalone@a-znet.com.
I hope someone out there was once a newb and understands my frustration.

Thanks in advance for pointing me in the right direction.