See: http://en.support.wordpress.com/avatars/blavatars/
http://en.support.wordpress.com/avatars/gravatars/

For best practices for uploading gravatars, avatars and blavatars scroll down to below the video here: http://onecoolsitebloggingtips.com/2010/01/24/gravatar-avatar-blavatar/

Note: Gravatar images are cached and frequently take several days to display after a change. Do not keep uploading! The first place they tend to display is here in the forums and I see your Gravatar here. If several days have passed and that change is not in evidence then post here for Gravatar support > http://en.gravatar.com/site/contact-us/

Is there a way that whatever I posted is categorized and only shows up on the pages I created?

Pages we bloggers create are static they do not automatically update and are for content that rarely changes. They sit outside of the blog structure and you cannot post to multiple pages in any blog. There is only one main page for posts in a blog and all posts will display on the main blog page. There is no way to exclude posts from the main posts (blog) page.

The front page of the blog by default will display your posts (not pages) in reverse chronological order, with the most recently published post on top. If you do not want all the posts to show on the front page, then you can create a static front page “Welcome” for your site and a “Blog” page for posts.
Choice 1 static front page
Choice 2 running page for all posts on front page
Which do you choose? It’s one or the other.
If you choose a static front page then you have to create two pages as I said above. After you do that you go to > Settings > Reading and make the designation change and click “save changes”.

Though there is only one dynamic page in a blog for posts and we cannot post to more than that one page, we can create the appearance that we have posted to more than one page. We organize posts by assigning categories to them. You can create a custom menu and add the dynamic automatically updating categories pages created by the software into the custom menu.
http://en.support.wordpress.com/posts/categories/
http://en.support.wordpress.com/menus/
http://en.support.wordpress.com/menus/#adding-category-pages-to-your-menu

Here’s a link to a custom menu walkthrough > http://onecoolsitebloggingtips.com/2011/08/11/wordpress-com-custom-menu-walk-through/

There are many common errors, misunderstanding and misconceptions when creating custom menus and you can read about them here > http://wpbtips.wordpress.com/2011/12/19/custom-menus/

Your posts show up on your feed page, the pages you create are more static, including whatever information you use to create.

You could create a widget for your sidebar that features only categories you select, then when someone clicks those they will go to a 'page' with only those posts.

Re: you Gravatar, try uploading a new photo so that once you click your settings, the new picture appears.

Also, what do I do about GE gravatar?