Finish the image upload function in Wordpress

Hi Freelancers, I'm building new website based on Wordpress. Users of this site can upload their own posts where featured image is required for each post. For post creation I'm using WP User Frontend PRO plugin which is great out of the box, but I needed to extend it a little bit. The uploaded images must be in exact dimensions so I've added jQuery based image crop function and attached it to the WP User Frontend via action hook. What I have: Image crop function. (get image and its crop coords from canvas and send it to the PHP func. via AJAX) Image to the post attachment function. (take the cropped picture from the temp directory and make an Wordpress attachment from it) Post submit fucntion. (save the results) The situation: Everything works great except one thing. The image and the post are handled at the same time, so the cropped image is processed and ready later than the post creation and the post is added without image. What I need to do: Combine the functions to wait until the image is processed. After this is done, than create the post with featured image attached. Requirements for the solution: - ability to handle 2 or images being submitted at one time - rename the final attachment image to the same name like the post I can provide all the documentation for the WP user frontend plugin as well as for jQuery crop function if needed but I think the real work is just in the theme [login to view URL] file where just few lines need to be add. It's simple one or two hours task for someone who know what to do. I will provide all the credentials to the FTP and test accounts to the winning bidder. Thank you all for your bids, and good luck.