T-zones was t-mobile's $6 internet plan. Port 80 was blocked and required a proxy. T-mobile internet was the $20 internet, different access point, no port restrictions, could tether, etc. T-zones was made for dumbphones that just did the wap browser thing. But me course people took advantage and realized it could be used on smartphones, just a proxy was needed, t-mobile even provided that proxy.
When a nokia phone sees a t-mobile sim it loads up those access points. You can just delete them since that information is so old.
A new firmware would be nice. Some camera improvements, browser updates, and I will be happy.