Here's the deal with copying and pasting. If you copy and paste text from elsewhere without using either icon 5 or icon 6 in Row 2 of the visual editor, please see here so you know how to do this correctly in the future. http://en.support.wordpress.com/visual-editor/#pasting-text Because it you don't it's only a matter of time before you will have a messed up blog that will be a horror show to straighten out.
Go to Settings > Writing and select “ ___ WordPress should correct invalidly nested XHTML automatically” and then scroll down and click “Save Changes.”
I basically want those five pages as categories in my navigation menu.
A Page is not a Category. Pages cannot have categories assigned to them. Only Posts can have Categories and tags assigned to them. There is no automatic way to move content you have placed in a static page to a post and visa versa.
You have two options only.
(1) Copy and paste the content in the static pages into new posts and assign Categories to them. Then delete the static pages.
(2) Or create one additional page as a parent page titled Whatever you wish and then edit the pages you have created and make them all sub-pages of that parent page. Then create a custom menu and add them to it.
Staff have provided help for those who want to structure their blog like a website. > http://en.support.wordpress.com/using-wordpress-to-create-a-website/
What’s critical is:
(1) a clear comprehension of the differences between pages and posts > http://en.support.wordpress.com/post-vs-page/
(2) a clear comprehension of the fact that there is only one dynamic page in a blog for posts and we cannot post to more than that one page. But we can create the appearance that we have posted to more than one page.
We organize our posts by assigning Categories to them. When we publish a post it automatically appears on the running page for posts and also on the Categories pages and Archives pages. Note: There must be one published post in each Category in order for there to be anything to display.
A custom menu allows you to display Categories with drop-downs to sub-categories in tabs along the horizontal navigation where normally only Pages tabs are displayed. If you wish you can also include Pages with drop-downs to sub-pages and custom links in your custom menu as well.
How to create a custom menu. http://en.support.wordpress.com/menus/