Newbie: What needs to be done between changing script and seeing updates in game?

#1 1. Shut down the runtime
2. If C++ changes, recompile the engine from visual studio (requires a source code license)
3. If TorqueScript changes, save the script and delete any DSO files associated with them
4. Launch the runtime to see changes

#2 If you don't have any datablock changes then you can call the

exec(); command on the .cs file.

Datablock changes can use a "Reload" function. You can see if this one works (I have it from Tribes 2), however it is recommended that you do restart the game if you have datablock changes:

function reload(%script, %client) {
    compile(%script);
    exec(%script);

    %client.transmitDataBlocks(0);
}