BlackBerry® Device Software

[#1]

Ok so straight up i'm gonna say that I bought my phone overseas in Thailand ( I live in QLD, Australia).

I expect there will be a few problems and there are.  There's heaps of buggy things with my phone like:

-in all sms's the 'w' is always in capitals :s

-my contacts when they call or sms - some have just the number and not their name appear

-i can't get the time to appear on the front

-when i channel the tv there is no option in region/country to select 'Australia'

I'm guessing that my phone is set to Thailand settings.  I'd love to get these errors fixed.  I assumed that re installing the OS might do the trick? I'm new to smart phones so have not sure where or how to do this.  Would love some advice.