Forget to say.
After that you only need to change the servers.

Here is the list of the MT4 for my favourite brokers:
http://www.interbankfx.com/info/ibsetup4.exe
http://www.metaquotes.net/files/fxdi...r/mt4setup.exe
http://www.metaquotes.ru/files/alpari/mt4setup.exe
http://www.northfinance.com/files/Me...r/mt4setup.exe

Good LUCK!