Lost/Found K530i Sony Erricson phone

Hi All
I have found a sony erricson K530i phone and it is locked to Orange France. The problems i found in it:

* I inserted my own SIM and it didn't work and when i reinserted the old SIM, it asked me the PIN code and after three unsuccessful tries, it gets locked and asked me the PUK which i undersand more related to Service Provider and only service provider can give that too me.
* Second problem is that it is in French language and i dont understand it.

What are my options to use this phone as a world wide phone? If i can be able to to unlock this phone, may i be able to use it in North America?
What are the options i have interms of unlocking this phone?

Thanks in advance!