Bluehost wordpress.com vs. wordpress.org

Hello!

Dumb question, but I’m slowly “getting it” re: this whole start my own blog thing!

I have an account on bluehost (www.thesaltypeanut.com). My previous blog was on wordpress.com. I transfered .com to bluehost with no problems.

Question: For me to be proficient with my new blog website, do I have to upload .org to bluehost? Is there a difference?

I’m trying to change my themes and am not finding “wp” in my file transfers section. Basically I’m trying to change themes.

Any help would be appreciated 🙂