Adaptive Theme Region Blocks Accessibility

Dear members,
I am screen reader user from Brazil.
I've decided to use AdaptiveTheme to Drupal, because it is the only one that follows all standard accessibility found at WCAG However, I've get
a really serious difficulty in my point of view. There are two lateral bars that are called near the content, which makes that the screen
readers read the content only after the general content,, even the first
lateral bar is posicioned in the left, it means, before the general content. How can I solve this problem?

Best regards,
Leondeniz.