Every time I try to login to Google Apps, using instructions in the email message, I getServer Error: We could not process your request at this time, please try again later.
Apparently, the limited function free Google Apps accounts, which can be only used for domain maintenance, are not working with the Google Apps account setup wizard, which is used after using "Buy a domain". We are advised that, when this error is seen, you need to use the user name of "bloggeradmin" - and the password of the Blogger account, under which you used "Buy a domain" to purchase the domain - to login to Google Apps.
In some cases, the user name of "bloggeradmin" may not work with the password from the Blogger account in question. In this case, you must reset the Google Apps account, before you can login to Google Apps.