[Plugin: WP-Cycle] Images not uploading

When I upload new images to include in the wp-cycle on my homepage they are not saving. After I’ve clicked ‘upload’, it takes me straight to the homepage and runs through the cycle but the new images aren’t there. When I go back and check the images that are already in it, the new ones don’t show up there either.

Any help would be much appreciated, especially if it doesn’t involve code as I have absolutely no knowledge in this area.

Many thanks.

http://wordpress.org/extend/plugins/wp-cycle/