Images on front page not showing up after i go live

Hi,

I have Network working great on my production site (localhost, MAMP) but when i pushed the theme folder to the live site, the featured images for the posts are no longer showing — is there somewhere that I need to change things? I am ok with coding, etc.

I created new posts, so i am not trying to pull post info from my test environment.

Thoughts?

Thanks!