Thanks for the heads-up NF, d-loading now. :)

The mozilla ftp is always open.

Mozilla 1.6 is now official - nothing other was announced

Those are nightly builds, not offical ones. & they won't close the FTP down either as they aren't there unintentionally, they upload new builds of mozilla nightly. The ones in the "nightly" folder however are not official, they are beta/alpha - whatever you want to label them.