BB Software :: How To Download Wifi Browser

i've been struggling with my new blackberry curve ATT 8520 v5.0.0.822 (bundle 1385, platform 5.2.0.76)it is killing my user experience and i am about to give up and not go to blackberries ever again.

1) battery dies every 4 hrs. there is a ticking clock showing which makes it hard to navigate through the menus. what i've done: logged out of all apps in the swtich programs menu (except for standard short-cuts, like browser, phone, messages, home). swtiched to mobile only (vs mobile, wifi preferred), my wifi is always off. one of the problems is it often searches for the network while network is actually available on, say, an att phone sitting next to me. so no wifi, no apps running in the background, all settings reset to low battery use as detailed out in some forums. what to do?

2) i can't access wifi. i dont have a data plan. i turn on wifi, it shows the correct network and that that network is on.when i try to turn on AT&T browser, i get "you are not currently in an area that can handly data communication". what i've done: cleaned out all settings in enterprise activation tried registeringhost routing table, but it showes the following message "registration messaged queued. it will be sent once data coverage is available". yet the wifi network is on!is there something wrong with the browser or the setup? do i have to download another wifi broswer, not At&t, or is it the question of settings? if so, which ones?