well done on having your photos published in your local paper
when you say your images are being bounced, do you mean that they don't upload successfully or do they appear to upload successfully but then you later receive a rejection e-mail (because they've been rejected by a moderator)?
If they are not uploading successfully then this is likely to be because the file size is too big (they must be less than 500kb). If they are being rejected by a moderator then this is almost certainly due to one of three reasons (1) they are not big enough (all images must be at least 800 pixels wide) (2) they are not titled correctly. They should be titled in the form 'Common Name - Scientific name'. (3) the image quality is not sufficient e.g. if they are out of focus or if the subject matter is too small within the image.
further info can be found here;
Add Your Own Photographs to the Gallery
Matt