Newbie with application problems

Hey Crackberry community! I recently purchased a blackberry 8320 and subscribed for the unlimited data plan. Yet with some of the applications I am having trouble. My maps do not show up and I'm not sure how to configure it for one. Two when I try to activate my blackberry for aim by going to the website it says my blackberry does not fulfill the system requirements. And lastly I finally got the facebook application onto my blackberry but every time I try to log in it says that there was an error contacting facebook. I know that was a mouthful but I hope you guys can help me out