Just an advice for new zen cart users. You may not need this module!
If you want customers to be able to configure their computers, use attributes. Read this tutorial https://www.zen-cart.com/tutorials/index.php?article=57

Being a new user I spent hours trying to get PC Configurator to work without success. Using attributes worked at once and was easy to configure. So, as usual, reading the manual can save you a lot of trouble