Send an email to NewEgg and ask them what version of the router it is. The revision/version number is listed on the bottom right near the model number. I say to get 1 or 1.1 because then you can use third party firmwares which let you change all sorts of cool options including the ability to increase the transmitter power!

It doesnt hurt to ask them for a new one. Say that you want a regular cable modem so that you can use your own router with it. In reality your best place to ask for help is on the DSLReports forums. There are plenty of knowledgeable members including some that work for your ISP!