Yes. Then all you do is contact your provider and register the phone.
No - there's no need to initialize it. Simply insert it in the handset for it to work.
The number is stored on the SIM card - NOT the handset. Simply take the SIM card from the damaged phone - and insert it into a 'healthy' handset.
Provided the handset is not locked to a network then yes.
Insert it in the computer with the SD card. then format your card.
to oversimplify - IMSI does not apply to a handset, it's a property of SIM card
No - although the handset will turn on if charged, you cannot make or receive calls, texts etc without a working SIM card.
for aircel network For `Blocked SIM Card': You need to visit at our Aircel Store, where a fresh SIM card would be provided to you with the number being same. For `SIM Card Rejected': This may happen because of dust on the chip of the SIM card, please clean the same once & reinsert the SIM in your handset and try. If still problem persists, then you need to visit at our Aircel Store, where a fresh SIM card would be provided to you with the number being same. For `Check Operator Service' : The message shall appear only on occasions when You have restricted `Caller ID display' option from your handset while this service ( CLIR) has not been activated for you. In such case ' Please access the call settings options of your mobile & activate / enable `Send Caller ID' option. Please note that the name of option may vary based on your handset model You have mistakenly selected `LINE 2' on your handset. In such case ' please access the call settings and change `LINE 2' to `LINE 1'
A card insert is the same as a reprint card.
HOTSWAPPING
No - you have to either swipe or insert the card. You can, however, use the numbers as a "credit card" for an online purchase.
It depends on whether the handset operates in the same frequency band as the UK. You would have to check the specifications. If they do - then its simply a case of unlocking the handset and inserting the new SIM card. If not - you'll need a new handset.
Assuming the phone came without a SIM card... Obtain a PAYG SIM from your chosen network (there might be a nominal fee). Insert it into the phone - switch on, and the handset will initialise the SIM. Finally - credit your account with some funds... ad you're all set.