What do you mean by your own store website?
How it works is comGateway will give you an address in Oregon. It's as if you live in Oregon. Then you make an online purchase of the goods you want from the website of a US store (like newegg, tigerdirect, and so on...) you tell the website to deliver the goods to your imaginary home in Oregon. That place is actually comGateway's warehouse. comGateway can then ship the stuff to your country.