Choosing a Domain Name
When you create an Expressions account, by default your new photoblog will be a sub-domain of my-expressions.com. For instance, if you named your account "blue", your default blog page will be located at: http://blue.my-expressions.com. You do however, have a choice of domain names!
In your Account Preferences, you will see an option titled "Domain Name" and a drop down menu below. Click on the menu and select the domain name you prefer, then click on "Update". Your default blog page will now be located at: http://blue.newdomain.com

Quick note:
Your account name (i.e.: blue) will always have the option of any and all domain names. Basically, this means that you can use any of the domain names at any time by changing the domain name in your Account Preferences.
Your account name (i.e.: blue) will always have the option of any and all domain names. Basically, this means that you can use any of the domain names at any time by changing the domain name in your Account Preferences.
