I lost the instructions to my Northwest Territory Regal Creek tent and I do not know how to set it up. I need help please

SOURCE: how do i get a replacement rain top for a northwest territory silver creek 18x10 3 room tent ?

try an outdoor shop
a trick here is to water proof the cover before using it
outdoor shops sell a silicon product that you can spray on the cover after you assemble it
let it dry completely and then when it rains the water will not penetrate the material and will run off
you will find that if you do the entire tent with silicon then when you touch the sides of the tent when it is raining ,the water will not come in where you touch it
any other advantage is that when the tent is stored for a time the silicon protects the material.