wpmu dev Data Update

Please note that all data is updated every hour. Last updated: November 24, 2010 1:46 am GMT - Update Now
I click on "Update" Now and only get error from my host
404 Error File Not Found
The page you are looking for might have been removed,
had it's name changed, or is temporarily unavailable.

I take it it doesn't matter seen the data is updated every hour anyway?
Doesn't seem like an important function but then again to play it safe it cannot hurt to manually update.