Featured Images

I just moved from WordPress.com to self-host through ww.wp.xz.cn and I’m using the same theme that I was using before (Oxygen). One problem I’m having that I didn’t have with WordPress.com is that the featured images are showing up in each individual post. I want them only on the homepage (http://diybudgetgirl.com). I don’t want them to show up once I click on a post (example here–top picture is the featured one and I don’t want it there). Is there a way for me to fix this?

I hope this makes sense. If not, let me know and I”ll try to clarify.

Thank you!