So I'm not great with computers, but I'm going to try to make this as detailed as I can.

I have this Linksys Wireless Router-- a Airplus XTreme G. I plug things into it, it's fine, and it's fine with both my MacBook Pro and my parent's PC. But I want to print wirelessly. So I bought the Airport Extreme Base Station.

The man at the Mac store said that all I had to do was unplug my other station completely, plug in the Airport extreme, connect that to the internet using the cable that I used to connect the OTHER router to the internet (in that WAN slot, I don't even know what WAN stands for), install the software and I'd be off and rolling.

But here's the problem- I did all of those things, and the base station keeps flashing amber and saying that it can't find the internet connection. It's a FiOS connection, but it works fine with the Linksys router (I plugged the old thing back in so that I could figure out what was wrong). I thought that maybe FiOS wasn't compatible, but how could that be? I can't possibly need to reset the thing, it's brand new, right???

PLEASE help. I'm such a computer illiterate. That's why I love my Mac, usually, even a dummy like me can make it work. Not in this case, however.