PHP Document Submission Script Modifications

I need someone to make some changes / additions to an existing PHP scientific abstract (document) submission system. The system collects various components of a scientific abstract and compiles them into a word document using PHPword ([login to view URL]). The system can be found here: [login to view URL], registration id: 54706609 (click “continue” to view the generated word file) 1. The submitter needs to be able to submit more than one affiliation number “Aff Nr.” Separated by commas under the authors tab. This will allow authors who are affiliated with more than one organization to be represented in the generated word document with two superscripts next to their name. 2. Another text field needs to be added in which additional notes can be made. These results will be displayed in an existing backend admin interface. 3. I would also like the title field and the body fields to have a character limit with a character counter setup displaying the maximum characters. 4. Existing error messages need to be styled so their do not shift the text boxes. For example, if one tries to enter a letter instead of a number in the “Aff Nr.” field , the +/- get shifted over. Ideally, errors should display in floating jquery tool tip boxes. I need these changes completed in the next TWO days. Please ask questions before bidding. Thank you.