After updating to the new atahualpa theme, my site's homepage is lacking h1 tag. Am using an image as a logo. What do i do?

nothing changed in that area from the last release so you were probally having teh same issue in the previous release and never Knew about it.

The blog title gets th H1 on a multi post page. if you are not displaying the blog title, you could add a widget area to the header, stick a dive in it with an H1 and then using a plugin like widget logic decide what pages to display the widget on so you won't have more than one H1 or single post pages.

I found out that my wordpress had a problem and i re-installed it and the problem was solved. Just turning on 'show blog title' everything is solved