That pages on the MS site points you right back to the Desktop Manager R6 download site on BB.
I did just now install the R6 desktop manager software and it works....but I don't know why it just stopped working suddenly with desktop manager 5.0.1. It worked fine before. My only issue is syncing certificates with R6 desktop manager but I may be able to get by with doing it manually. I do need to use encrypted email here at work.