To Edit your Personal Details:
Log into Portal
On the Top Menu Bar, click My Account
In the My Account Details section, Click Edit
Type over the details you wish to edit, then click Save
To Change your Password:
On the Top Menu Bar click My Account
In the My Account Details section, click Change My Password
Enter your old password - Enter your new password - Enter your new password again
Click Change - Your password will now be changed and you will get a confirmation message