Confused about a-nation stuff

[AyUmIXx]

well..
as we just knew that..a-nation 2006 will be released in the pack of CD+DVD
which contains best hit collection of avex artists' songs..
so, my questions are....

1. are the songs inside have been recorded live during the a-nation 2005 show or just the original mix of the song, example: STEP you which which we know that it's on the tracklist for the a-nation 2006 best hit album, i've been wondering if the song is recorded live or the original mix.

2. and for the DVD, is the DVD contains STEP you PV or the live version of STEP you in a-nation 2005?

3. if a-nation 2006 has been released, so will there be the a-nation 2006 CD or CD+DVD live from the upcoming a-nation 2006 event?
which maybe ayu will sing BLUE BIRD live...and there will be the version of DVD for sale...
(i remember that for a-nation 2005, there is the DVD that contains about the whole show and it has been released before, and my friend has it)

am i clear with my questions?
thx in advance!