Ever since Google changed Google Apps so owners of private domains could use their domain email addresses, administered through Google Apps, as Google accounts, Blogger blog owners started consolidating ownership of their Blogger blogs to accounts based on their Google Apps email addresses. Later, we started to get various reports of people unable to administer their blogs, with the blogs now owned by the consolidated Blogger accounts.
In other cases, blog owners were using Blogger accounts which used email addresses provided by their educational institution or employer, who had recently switched to using Google Apps provided email.
Recently, Google added Blogger as a service, controllable from the Google Apps Services wizard. Now, new Google accounts based on Google Apps controlled domains, by default, have the Blogger service disabled - and these Google accounts can't be immediately used for Blogger blog ownership.
If you are the owner of a private domain, you may be unable to create a Blogger account based on your Google Apps provided email address.
Blogger has not been enabled by the administrator of the domain xxxxxxx.com.
You can sign into another account to use Blogger.
You may be able to enable the Blogger service for your domain. From the Google Apps desktop, for the domain administrator account, go to "Organization & Users". The Blogger service should be listed, under the "Services" tab.
If "Blogger" is not visible under "Core Google Services", look further down the list, under "Additional Services". You will find the service, in one list or the other, indicated as either "Off" (in red), or "On" (in green). If Blogger is Off, click on "On", then on "Save Changes" at the bottom of the services list. Observe the advice
These changes may take up to 24 hours to propagate to all users
If you are simply an owner of one email account in the domain, you may have to convince the domain administrators to enable "Blogger" as a service - or setup a new Blogger account, based on a new email account outside the current domain.
Whether you are the owner - or just one more user - you should be aware of the possible consequences of using an Apps provided email address for your Blogger account.