Creating your work space in Dev-C++
To open Dev-C++ (in the lab, it's Start -> programming -> Dev-C++).
Either click on the new project icon
or using your mouse, navigate to, File -> new -> project, and click as shown in this image.

In the window that pops up, click on empty project and name the project according to your assignment for that lab week.
Save in the project folder you created in your file space (see the creating your file space web-tutorial).
When you do this, a project icon will appear in the Dev-C++ sidebar window. In this image it is labeled project1.

Right click on this icon and in the popup menu, select add to project as shown in this image.

If the open file window doesn't display your project folder navigate to that folder and select the template based file you put there. (See the Setting up template.cpp tutorial)
If the source code editing window doesn't show up, click on the name of the file in the sidebar and it will open in an source code editing window in Dev-C++.
Here you are ready to edit C++ code
hint - When you use file -> save, in Dev-C++; do not type in a .cpp extension because Dev-C++ will do this for you.