once u are on the system that is connected to the internet.just open the site that u used in registering ur mail address and look for a space that read  log in and put in ur log in address and password and click on sign in button

if ur phone and ur computer have bluetooth.u can transfer the pictures through bluetooth one by one.just make sure that the computer bluetooth is on.

to delete old message. hold shift down and start clicking on the message u want to delete and after that click on delete.that all