Digital BW, The Print

Some very simple questions about 2.1b   I am running 2.0 without 
problems and am trying to determine if it is worth it to upgrade:

1) I am sure I am missing the obvious, but I can't find the link on 
QTR site for the new version...the only link I see on the windows 
page is for the old beta 3 of 2.0...do you just download the 2.1 from 
the Mac page?

2) What are the advantages to the new version for the 1280?  Any new 
curves, etc?

3) I noticed in one of Roy's message he referred to needing an easier 
way to overwrite the old version.  Is ther any problem downloading 
the new version B?

Thanks so much for the help and I apologise for having to ask such 
basic questions.

Peter