I recently installed 2.6.1 (I know it's not tested yet for the "elements of SEO" theme), but the theme works GREAT for everything (my new site: georgerausch.com). However, when I inserted the "read more" code into a post -- because some of my posts are really long -- it caused the l_sidebar.php to shift down as though the #contentleft DIV had become too wide to accommodate the #contentleft, l_sidebar.php, and r_sidebar.php.
I didn't test to see if this issue occurred without using a the dynamic sidebar, but I'm pretty sure it will continue to happen.
Otherwise, FANTASTIC theme and easily customizable. Coding is super clean and explicit in it's construction. I plan on further modifying it if I have time.