We do have a "Mapping & Navigation" library in the IAN symbol libraries if this might help you.
Otherwise, it's fairly simple to draw coloured squares, triangles, and circles.
In the tool palette, you should see the 'rectangle tool' on the right hand side and four down. If you hold down the shift key while you click and drag with this tool it will make a square.
There is also an 'ellipse tool' underneath this tool, just hold down the rectangle tool on the palette and you will see this option show up. The 'ellipse tool' works the same way - if you hold down shift while you click and drag using this tool it will make a circle rather than an oval.
To get a triangle is a little different. There is a "star tool" in the same set of tools underneath the rectangle tool. Select this tool and just click once on the artboard. A dialogue box will appear, so change the number of points to "3" and you will get a beautiful equilateral triangle.
Hope this helps,