I think the redesign looks great! The new design is also still very easy to read and navigate - not a case of design for design's sake (like some older issues of Wired).
I was going to post this in the other forum, but yah I like it, gives a nice crisp latex glove & bunny suit in a class 1000 clean room feel. Like opening up a fresh package of laserprinter paper and being blinded by the white. But in a good way
Might be a local caching issue. Hit the http://www.advancedaquarist.com/ site and then hold down your [Ctrl] key and hit the [F5] key to force a reload.