Change themes > Dashbord > Appearance > Themes and note what raincoaster said. Select the theme and click "preview" if you like it click "activate".
As well, my edit page didn't show images I uploaded, nor did some of them show up on my blog page.
re: the images you uploaded
If you are having problems uploading images then the most likely causes are:
The file size of the image is too large.
Your connection is slow.
There is a problem between your computer and the WordPress.com server. (You do not have a direct line here. Your connection will go through any number of hubs before it gets here and one problem along that line will cause you problems.)
(1) Were the images accepted file types with these extensions?
(2) Did you compress and pre-size the images to fit into the blogging space on your theme before you uploaded them?
maximum displayed image width by theme> http://wpbtips.wordpress.com/2009/07/23/maximum-image-width/
sidebar width by theme > http://wpbtips.wordpress.com/2010/01/11/sidebar-width/
Relying on the cropping tool simply means loss of image quality.
The images can be displaying to others but you cannot see them in the browser and version of it you are using. > http://en.support.wordpress.com/browser-issues/
Please post links to the posts and/or pages you cannot see the images in.