I tried it on 10.3.9 and FF 2.0.0.14, if I get chance I’ll try it with 10.4 tomorrow and see if there’s any difference, not sure why you need it to redirect to /blog? just set it up in the dashboard to go to main URL.
As for the design that’s very subjective but for me it’s easy on the eyes, nice colours and (almost : ) functional, it does what it does, and I do agree with:
It’s a nice enough looking mod of K2, but it doesn’t strike me as such a radical redesign as to warrant a separate release.
As JS is restricted on my FF when I click the pics they just open on their own in the browser, sometimes usability comes first over design, as has been said before, “doesn’t matter how pretty it is if it doesn’t do what it’s supposed too!” I think the slow loading could be distracting people from the design.
I think the tags look out of place, it’s nice and tidy until you get to the bottom of the sidebar and I’d set up permalinks as it looks better.