[Bossman]

Regarding your first question: No, you always use the GPRS settings of your provider, in this case, WIND.

Your second question: You can have as many profiles on your phone as the phone will allow. I am sure there is somewhere on your phone to change the default to whichever one you want. So, make sure you are trying to connect with the correct profile (WIND), or just set WIND as the default for now, till you get back to Canada, then you can change it back.