sim card? it works with the boost sim card but what i would like to know is if i could do everything that i can do on my boost phone cuz i get internet on my boost but i cant get it on the blackberry even though i get it on the boost and i cant text on the blackberry but i can text on my boost so wat is the problem with the phone or is it just not possible

because i can use it for phone and for walkie talkie but i cant use it for texting or internet