Edits to existing script- PHP/MYSQL

Hi we have a script that distributes files to multiple hosts, similar to sharebee, and we need some edits made to it. The largest edit consists of adding a upload bar (maybe uber upload) and tweaking the upload process to distribute the file to multiple hosts in the background, rather than while the user uploads the file. To see what i mean, try uploading a small file on [login to view URL] The upload runs really slow as the file gets distributed to the different hosts and the script waits for the file to be distributed before giving them the download link. So i want the distribution to occur in the background after the user is given the download link. Those are the main edits but some smaller ones need to be done as well that i can send you via pm. Our initial budget for this project is $165 and we will send you a escrow before you start work so you can work on our server. Please PM us if you have any questions so we can send you a list of the rest of the edits. Thanks and happy bidding!