Remove Noindex?

Under wordpress setting -> reading there is a checkbox for preventing indexing of search engines. Discourage search engines from indexing this site. If its checked, disable it.

Customizing SERP content for WordPress Blog

Let me start off by saying you can’t edit or control what Google displays in its SERPs. They control the format as well as what gets displayed and will determine when they should or should not display a listing a certain way. Having said that you can do your best to influence what they display. … Read more

WordPress Meta Title Separator

Check out the documentation for wp_title(), as there are several things you can do to format it how you want. Using the following code will remove the double arrows in the title: <title><?php bloginfo(‘name’); ?> <?php wp_title(“”,true); ?></title>

Word Press Permalink Change

this is corrent; WordPress generated always an permalink for each post with category and tag; you must dofollow this for the bots on your robots.txt, like Disallow: */?tag=* or Disallow: /category/*/* See also the codex for this topic.