Magento Guru needed

Hi guys I have a magento website built that has been customised to a certain extent. It follows the istock model. In which contributors upload images, they get approved/rejected. Then customers can buy the image, the contributor gets a percentage. At the moment I can log in and upload an image as a contributor. What I need is the upload section to follow three simple pages of design. The first page would be select an image, second page fill in name, description, pick keywords and categories, select model release, submit file. There will be more work if you do this well Thanks Alex