[support] theme images not working

I'm trying to adapt the Aberdeen-liquid theme to look like this: http://www.theyesexperience.com/vino/

I can't seem to make the header & background images show up, either by putting them in the CSS, uploading the "logo" in the theme settings, or putting them in the site directory, and I have no idea what the problem is. We chose Aberdeen because it claims to be fully CSS, table free, etc. I don't know what questions to ask or what to search for on Drupal. It may be something really simple, but it's driving me crazy.

Can anyone help?

Jean Gazis www.jeangazis.com www.boxofrain.us

"Believe those who are seeking the truth; doubt those who find it." - André Gide