Here, let me spoon feed you.
1. go to
www.bitaddress.org2. save the page, on firefox it's File -> Save Page As; on internet explorer it's File -> Save As
3. copy this file, the html, save it on CD or USB flash.
4. go to another computer that is NOT connected to the internet, and also NOT connected at all to any network at all. preferably a computer that was just freshly formatted and installed the OS; so you know it is clean and has no malware, virus, trojan, keylogger, whatever.
5. copy the bitaddress.org HTML file that you just saved
6. open the file. Use your browser.
7. generate a new keypair.
8. (optional but I highly recommend) get the compressed version of the private key you just generated. Use the Wallet Details tab of bitaddress.
9. save the public key, make a QR code, print it, whatever.
10. secure the private key, encrypt it, print it on paper, write it down by hand, keep it safe.
11. clear the cache, close the browser, shutdown that offline computer. do what you must to make sure there are not other traces of the private keys you generated.