you'll see a small globe in the top right of your phone, go to Menu --> Net --> Nextel.com --> Sub ID and write down the first two sets of numbers, on mine it was like 10 digits, a dash, then 8 digits.
3.) Go Here
http://www.teknidude.com/wap/alert.asp and add the numbers to the beginning of the address already provided. Send the Net Alert.
4.) Once you receive the alert, it will allow you full web access. Simply go to your Mesg area, then Net Alerts, then choose TekniWap.