[How is a rocket moved?]

Here's a more detailed video for the NASA crawler:

And here is the Russian train that carries rockets:

[How do you modify the available parts inventory in the VAB?]

I did finally figure this one out, thanks to some help from Adammada's Basic Mission Pack scenarios (a great set of scenario challenges designed for newer players).

Here's the basic code if anyone is interested. See the Mission Pack linked above for an actual implementation.

//create a set of available parts
Dictionary<string, AvailablePart> parts = new Dictionary<string, AvailablePart> ();

//add each available part to our set and make the amount available equal to 0.
foreach (AvailablePart eachPart in PartLoader.fetch.loadedPartsList)
{
	eachPart.amountAvailable = 0; //sets the amount of each part available to 0
	//Parts with an amount of 0 are not displayed
	parts.Add (eachPart.name, eachPart); //Adds the part to our set of available parts.
}
EditorPartList.Instance.Refresh (); //update the editor screen with our list of parts

//This will change the qty of items available on the fly:
//NOTE the qty of parts available in the editor DOES NOT currently decrease when adding parts to a ship.
string name="MK1Fuselage";
parts[name].amountAvailable=5; 
EditorPartList.Instance.Refresh (); //update the editor screen with our list of parts

[Compilation of modding information links for 0.19/20/21/22/23 - Last update 24th Jan]

Why is this not stickied yet?

The format looks good, although there is a minor font issue under landinggear where a couple of entries are in a smaller font.

A few links you can add under plugins:

Creating your first module

Part API

Anatid's KSP API documentation

The official unoffical help a fellow plugin developer thread

Mu's code-update PartModuleKSPField KSPEvent ConfigNode and PartResource

Handy link to add under general

Stock Parts List

[How do you modify the available parts inventory in the VAB?]

Thanks for the ideas. I couldn't find the source code in the part filter, but i'll keep playing with things.

[How do you modify the available parts inventory in the VAB?]

I noticed the first tutorial (Construction Basics) controlled what parts were available to build with in the VAB, but I couldn't figure out how to do this myself. Does anyone have any tips?

Thanks!