Regarding the MLCAD file for the Mammoth Mk III:

Section 1:  Colors

I have my own color table for the new bleys, tan, dark tan, dark blue
and dark orange that I used in the MOC.  I pulled these values from 
Peeron.com, but unless you had your own custom pallet with the colors 
in the same positions as mine, the model would not load properly.  To 
avoid this, I used the colors common to everyone.

The following shows the colors in the .mpd file followed by the colors
as they appear on the MOC.

dark gray = dark bluish gray (dark bley)
light gray = light bluish gray (light bley)
tan (unused color number 382) = tan
tan (solid) = dark tan
unused color number 272 = dark blue
dark orange = I changed the dark orange parts to gray or tan
orange = orange

Section 2:  Parts

This .mpd uses many parts that do not come with the standard download of 
LDraw and MLCAD that you'll find at ldraw.org.  However, all the parts
used can be found in the parts tracker.

Please make sure you read the documentation that comes with LDraw and
MLCAD about how to download additional parts and add them to your parts
list BEFORE downloading the parts.  It will make your life much easier,
as there are often subfiles and primitive files that have to go to their
specific folders for the parts to work correctly.

To access the parts tracker, go to www.ldraw.org.  Click on the "Parts 
Tracker" link.  Then click on the "Parts List" link.  You can then use
the Lookup feature built into the page, or the "Find on Page" function
of your browser to quickly get to each part.

Below is the list of parts that you'll need, as best I can remember.  If
it's not complete, just watch the warning messages as you load the file.  
MLCAD will tell you what parts are missing, by number and name.

Parts needed:

44675.dat  Slope Brick Curved Top 2x2x1 with Dimples
30367.dat  Cylinder 2x2 with Dome Top
47757.dat  Wedge 4x4 Quadruple Convex Slope Center (Pyramid Shape)
50746.dat  Slope Brick 45 1x1x2/3 (Cheese Slope)
57518.dat  Technic Chain Tread 38
57519.dat  Technic Sprocket Wheel 40.4
43898.dat  Dish 3x3 Inverted
43710.dat  Slope Brick 2x4 Triple Left
43711.dat  Slope Brick 2x4 Triple Right
42022.dat  Slope Brick Round 1x6 (not needed if you've got the latest
                                  parts update).
48336.dat  Plate 1x2 with Handle Type 2
57779.dat  Crane Arm Outside with Holes

If you have any questions, I can be reached at peterlmorrsAThotmailDOTcom.