Can I install "HTC Wildfire" or "Sony Ericsson Xperia X10 mini" firmware on "Samsung Galaxy Pocket"? Can I install "HTC Wildfire" or "Sony Ericsson Xperia X10 mini" firmware on "Samsung Galaxy Pocket"?

Hello, I want to installdifferent manufacturer's firmware on my Samsung Galaxy Pocket.

Samsung Galaxy Pocket specs:
http://www.gsmarena.com/samsung_galaxy_pocket_s5300-4612.php

HTC Wildfire specs:
http://www.gsmarena.com/htc_wildfire-3337.php

Sony Ericsson Xperia X10 mini specs:
www.gsmarena.com/sony_ericsson_xperia_x10_mini-3125.php

Is it possible to install any official (or unoficial) firmware of these phones (HTC or Sony Ericsson) on my Samsung Galaxy Pocket?

Thanks....
You shouldn't do that thing. Take in mind that each device is special and each firmware is specifically made for that device. 

If you try to flash a different firmware you will brick you phone.