Wirelessly posted (8820)
Open you blackberry browser. Point it to
http://mobile.blackberry.com. You'll see a link for blackberry app world. If you don't already have it, download it. That is probably your easiest way to look for applications, download, and install on your device.
Also, look through
http://www.blackberryfaq.com/index.php/BlackBerry_FAQ if you haven't already, and look at the stickied threads at the tops of the subforums here at BBF.
As far as updates, I don't know what you mean. What did you do? You say you don't have a computer. What did you do?