Cheat mode:
Start a new game and enter TheGalaxyIsYours as a case-sensitive name in the new player slot. When choosing your new player you must double click on the name, and not click on the blue arrow:

Note: the v1.1 patch is required !!

Result - Code:

Win current mission - [Ctrl] + W
View all active units - [Ctrl] + 8
View all units - [Ctrl] + [Shift] + 8
Remove fog of war - [Ctrl] + 9
500 more command points - M
500 less command points - [Ctrl] + M
Order any unit regardless of command points - [Shift] + M
Spawn units without drop ship - (Keypad 0)
999999 life for unit - (Num Lock) + (Keypad Asterisk)

500 command points
Enter 'TheGalaxyIsYours' in the name screen click on name NOT arrow or it will not work, in the game press shift and 'm' and you will get 500 command points!!!
(send by:Dale Cromwell)

More command points
You will need the v1.1 patch for this code. Start a new game and enter "TheGalaxyIsYours" as a name in the New Player slot(when choosing your new player you must double-click on the name, and not click on the blue arrow). Then during playing a game in campaign or skirmish modes, press M for 500 command points.

Get double units
If a unit carrier gets destroyed, remove the unit at the same time it explodes. If timed correctly, that unit will be doubled.

All Missions
Star a new game with the character name "TheWorldIsYours" and then double click on it to access all missions.

Special Troops
First of all, you MUST have the version 1.1 patch in order for this to work. Then create a new file called "TheGalaxyIsYours" and capitaliztion does count! Enter any mission (even a skirmish) and press Ctrl+0 and at the bottom of the screen it should say "stormtrooper". Press up or down until you find the unit you want (I've gotten Darth Vader, snowtroopers, and 4 different Lukes!). Then press left to get what you chose. Oh, and if you think your guys are weak, just press Num lock+Keypad asterik (*) to get 999,999 (!) life for your selected unit!