For the sim card I believe you need the assistance of a 'website' (although I dont know if they actually work)
Or your network provider.
Who are you with?
As for the bootloader, head over to this website to unlock your bootloader with sony.
Note that it will probably void your warranty.
... Ok scratch that I cant post links
Sony unlock Bootloader.
|device unlock, network unlock, sim unlock, unlock bootloader, xperia p|
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