Found at:
http://blogs.msdn.com/ie/archive/2006/10/18/ie7-for-the-world.aspx

IE7 for the World

Now that we’ve released IE7 in English, I want to update
everyone on our plans for other languages. The short version
is that we will be releasing IE7 in all languages available
for each version of Windows – twenty-four fully localized
languages in total. In two to three weeks, we’ll ship the
Arabic, Finnish, French, German, Japanese, and Spanish
language versions. The remaining languages will be released
in phases between November and January. I’ve listed the set
of fully localized languages by operating system and
platform below.

In addition to these full language versions, we will release
the Multi-language User Interface (MUI) version in January,
and the fifty-five Windows XP Professional Language
Interface Pack (LIP) versions of Internet Explorer 7 after
that. You can find more information on the Windows
Multilanguage User Interface (MUI) Version and Windows XP
Professional Language Interface Pack (LIP) at
http://www.microsoft.com/globaldev/reference/muizone.mspx

Tony Chor
Group Program Manager