Wordpress help?

It%26#039;s very confusing!! I am currently paid to Godaddy.com for the domain name, then Wordpress.com to host the blog site. I want to change the theme on the blog site, so I just downloaded FTP from filezilla.com. Here is the question: after I opened filezilla, I need to put in %26quot;Host%26quot;, %26quot;Username%26quot;, %26quot;Password%26quot;, and %26quot;port%26quot;..I tried every one of them, but didn%26#039;t work. So do I enter Godaddy.com or Wordpress.com on %26quot;Host%26quot; section? and how about username, password and port? Please help. Thanks

Wordpress help?

If your blog is hosted by WordPress.com, you can%26#039;t upload a new theme; you can only choose from the themes that are already available under the %26quot;Presentation%26quot; tab on your admin panel. The good news is, there are a lot of themes already available.

If you want to be able to upload a theme or add plugins, you%26#039;ll need to move to the full version of WordPress. It%26#039;s not entirely trivial but you can find more information here: http://www.wpquickstart.com/wordpress-ve...