They revamped the site, which explains why it was down all morning.

To save everyone some time, you can go to

www.daz3d.com/bryce55

and it will generate a serial number for you.

and as an added bonus if you look at the bottom of the screen there is an offer for a FREE Master Series Item.  available for the next two weeks.

You get too pick out of 4...  I picked Rudy's "The Block" Tutorial.  It was either that or the City Sky one, but I think Rudy's city is a better deal. :) its almost 500MB Download.