Hello Clecio i’m another Latin American (Bolivian) in this forum, I posted my own ERPNext installation checklist in this link https://discuss.frappe.io/t/in-fresh-ubuntu-14-04-erpnext-ease-install-error/6526/4?u=joseosman.
First of all forget about using wampserver, you need to use Ubuntu Server 14.04 and follow the steps I posted and you will have your ERPNext installed and running on the server, but you need to enter the main site using another computer connecting the Ubuntu Server address, because the server does not have an graphical enviroment.
I hope it will work for you. Saludos 