The username is rohannaeadedance, but it links to this URL: http://rohannaeade.wordpress.com
You can correct it in Users > Personal Settings: scroll down to Account Details, paste correct blog URL in the Website field, click Save Changes.
If you rely on the Image widget for resizing, lousy browsers (call that Explorer) may not understand it. So the best way to display images of equal size is to upload images of equal size: use an image editing application to change their dimensions prior to uploading.
If you can't do that, then better use a Text widget instead of Image widgets; coding here: