I recently bought a blackberry curve unlocked from mobilecityonline.com, and now i dont know what to do? do i just unsert a sim card from movistar? can someone please help me, im so lostt!

and i am in venezuela. are there any venezuelans here that can help me pls

If it's unlocked, then yes, just insert your sim card. You'll need a Blackberry Data plan on your Movistar account if you want to get email and internet, etc.