Try eBay for the latest.  Item 270153093590 is the latest available on DVD but
remember these are ripped and not BMW items although they are copied from the
BMW DVD.

Personally I am looking for a bootleg Euro Hi Grade Sat NAV DVD for Europe but
they cost $400 from BMW/Navtec but dealers are outing the 07-2 DVD for $200 if
you hand in the old one - one way to take the old stuff off the market.

LISTEN:
If your car is a (ex:) 2005 - you don't need the LATEST version.
I have a 2003 330, I use the 2004 ETK, it has everything I need.... many say
that the newer versions are not as user friendly, so stick with what you
have....

I too wanted the latest of everything - but was guided by a BMW tech who
uses this stuff regularly.

It is available tho...
but will it really help you?????

here you go:
WDS: - no membership site
http://www.mininova.org/tor/840662

ETK: need membership
http://www.demonoid.com/files/details/1296662/1115144/

TIS: need membership
http://www.demonoid.com/files/details/1200826/3345432/

I have perfect copies of ETK 2006 and TIS 2004 with proper instructions for
my 2003 330.

If anyone wants copies, let me know!