[Danny90]

I use to have the same problem with my phone it rebooted about 3 or 4 times a day on its own sometimes even more

I fixed this by backing up the phone with Blackberry Desktop Manager and i reinstalled the OS

For your other problem before you can browse the internet you will need to phone orange and ask them to activate BIS for you the price is £5 per month you still need to activate it to use the internet even with WIFI

The setup process takes between 12-48 hours sometimes it wont take that long
you will get a text message from orange telling you when its all setup

once your BIS expires you can continue to use WIFI internet as long as you do not delete the service books

you can still use some apps on WIFI this is my list of apps that work for me

Facebook
Twitter
Browser
Opera
What's App
Blackberry App World
Blackberry Protect works but you need to select allow backup over WIFI
Alot more apps do work i cant think of anymore right now

That's just a small list i don't have many apps there just the ones i use that i know work with WIFI without BIS data

BBM Will not work for obvious reasons and sending/receiving email does not work either

Hope that helps you and anyone else asking the same question