Noob Questions

[POTO]

I was given A Cingular 8525 recently and have been using it just as a PDA till tonight when I activated it as a go Phone to see if I would like to use it permenently. I have a few questions about this unit I hope someone can help me with. In no particular order...

currently I get about 1 day of use before the battery dies, will enabling the phone cut this dramaticly? ( and if I bought a new battery could I expect a much longer life?)

I HATE the Power button, is there some way to program it to be held for 10 seconds or something before turning on the device? I keep it in my front pants pocket with everything else ( yes- its beat up) and the stinking power button always manages to get turned on and then all sorts of programs get running. When I took it out of my pocket the other day it was 1 click away from a low level format of the storage card. this also is killing my battery life. any suggestions?

on the phone section, under 'services' it says voice mail and text, what are these boxes for?

in the same general area, there is an option to require a pin to use the phone, I think I would like to turn this on but it asks for the old PIN which I dont know. is there a way to reset this so I can add my own pin? ( I have done a hard reset, but that doest affect this option i guess) - also there is a Pin2 option for the sim card, which I have replaced but again it asks for the old pin, which there isnt one. What should I enter?

is there a way to have ALL internet connections 100% of the time use wireless (Wifi) if available, and if its not just fail? I thought I had it set to use wireless, but sometimes it still tries to connect through the phone line.

Thanks..