They all work for me as well and I'm using Google Chrome as well. If you're getting redirected, I would suggested clearing out your internet history and cache as this may help the issue. Also, if you're wanting to be notified when U-Verse is available, the url for that is att.com/u-verse/notify-me and this will send you an email when it is. Of course, this only works if all U-Verse services are not available (tv, internet and phone). If either internet and phone are available, you will receive an email still.
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.