Tmail is T-Mobile's version of email and is sent to your Sidekick phone. T-Mobile is a cell phone provider with service all over the United States. Tmail is not only accessible on your phone, it is also able to be viewed from any computer.
Go to the T-Mobile website (t-mobile.com) and login to your account by entering your username and password in the account login section (my.t-mobile.com).
Locate the "Communications" tab and click on it. Click on the link to the "Desktop Interface" and click on the Tmail link.
Read your messages and view your photos. If you are using a public computer, you need to log out of your account before you close the webpage to prevent anyone from accessing your personal information.