Heres a crude tutorial to help you understand it a little better until jungletek makes his nice tutorial:
1. Start ArtMoney. Make sure you are in "File Mode." To do this, go to Search > Object > File(s).
2. Load your first mem dump. Right underneath the buttons at the top there is a "Select File" box. Click the "..." button next to the box and load your first dump.
3. Click the "Search" button at the top of the window. A dialog will appear. If you know the exact value of what you are looking for, select "Exact Value" from the Search combobox, and enter your value in the Value field. If you don't know the exact value, select "Unknown Value" from the Search combobox. Now click the "Search" button.
4. It will start your search. When it is finished, click the "OK" button.
5. Select your next memory dump the same way you selected the first one.
6. Click the "Filter" button. Again, if you know the exact value of what you are looking for in this dump, select "Exact Value" from the Search combobox and enter the value. If you do not know the exact value, select "Unknown Value" from the search combobox, and under the Value combobox, select whether the value "was increased", "was decreased", "was changed " (increased or decreased), or "was not changed". If you know how much the unknown value increased or decreased by, you can also select "was increased by" or "was decreased by" and enter how much.
7. Click "OK". When the filtering is done, click "OK". In the bottom left of the window it will tell you how many addresses it found.
8. Repeat steps 5-7 until you narrow it down to a few addresses. Now you click the green arrow in the middle of the window to view all your addresses and their current values. From here you should know what to do
. Have fun!