Possible to change how a post format is displayed?

Hello

I’m creating a photo blog site using the Suffusion theme. I have one problem I’ve been unable to solve [by trying to understand all the Suffusion options and by searching through the forum] – I’m hoping someone on here might be able to help.

I’m creating posts using the ‘image’ post format and adding a feature image to the post. I do not want to insert the image directly into the post if I can avoid it because I’m using plugin WP User Frontend to make it as easy as possible for the photographers to post their images and the plugin gives the option to upload a featured image.

Currently, the featured image is displayed as a thumbnail at the top of the post, embedded to the left of the text. I would like the image to be displayed full size at the top of the post, above the text. Is there another way I should do this, or can I change the way the theme handles this post format?

Here’s an example page using the ‘image’ post format:
http://agathering.172east.com/the-front-door/
and here’s an example using the ‘standard’ post format with the image inserted into the post text to show how I would like the ‘image’ post formats to be displayed:
http://agathering.172east.com/dont-forget-the-colours/

I’m using Suffusion 4.4.7 and WP 3.7.1

Many thanks for any help you can offer

Vicki