Hi there! :)
The sample project has a map named "Character Generator". Maybe you downloaded the MV version of the sample project?
After you enter on this map, there are plugin commands for you to test and play that opens the Character Generator scene.
The image files that are on the sample project are just copy of the default images that comes with RPG Maker. I just formated them in a image editor to be used with the plugin as an example. As so, if you want the female parts, you need to go into the RPG Maker installation folder and get them there, and properly format them to use on the Generator plugin.
You also need to drag and drop the Character Generator plugin you bought, inside the JS folder of the sample project, then, activate it on the plugin manager.
Hope this helps! Otherwise you will need to give me more details of what is going on.