or you can use the program artmoney (gogo google!) to find the money number and freeze it - works everytime, just save the location and load it up in the program when you start a new game voila! instant cash.
I actually like to add to the additional amount seems like freezing the money crashes or slows the game down.......you can also try address 29b28b4, this address I used for the tutorial/story part of the game.....
Okay, I'll bite. I got the demo and the artmoney program, but I can't see how to tell it to search through the Demogame.dat that is loaded up. It doesn't show up in process list in artmoney, and when I try to use the file option it wants to edit files on the HD which I think is the wrong thing. When I search the memory for the items useing the command and conquer 3: Tiberium Wars process I can narrow it down to two items that seem to have the money values in them, but as another user said changing those values doesn't actually change the money you have.
So I'm missing a small trick to get this to work. Any idea what I need to do to make it work? I see that some of you have got it to work with artmoney so it should be doable.