I have a wireless network set up through a Westell Versalink modem/router. During a recent visit my Dad bought an Airport Express 802.11n Wi-Fi to extend our network (it weakens substantially between floors). However, after looking around, it seems that the Airport Express can only be used as a signal booster/extender with an Airport Extreme/Express base station. My questions are: 1) Am I right? Can I not use the Airport Express as a signal booster for our Westell Versalink wireless network? 2) If I am wrong and I can use the Airport Express as a signal booster, how? 3) If I am right (question 1), can I disable my Versalink's router function and use the Airport Express to create the wireless network in our house? Will this be better than our current wireless network? (Our house is rather small, so I'm always surprised at the low signal.) How would I do this? Thanks for any help or advice on this. We aren't looking to purchase anything more, just make the best of what we have.