While mine won't update either, I can still load it and my macros are still functioning. Not sure if you can create new ones, haven't tried that. And my macros are not really very complex ones, just basic tailor and mining, couple other minor things like vendor agents etc. So for me this hasn't been a major issue yet.
Interesting though that their website is also down... I can only hope they are merely upgrading servers or moving/migrating to new servers or some other beneficial thing.