XML Format Conversion Script

I have an interactive PDF Form for purchase order, I fill that form and export it into an XML format. I want that XML format to be converted into our Accounting system XML format using JavaScript or some other easy method so that it could be imported and used by our accounting system. Please have a look at the attached files to see which XML format my PDF form exports and which format is required. The accounting system is called SunSystem. There is an interface module to Sun called iPOS, which is an online PO Requisition/Generation processing platform. iPOS relies on the upload of an xml file. The xml file has certain fields and very specific format. My Purchase Order xml file saved from interactive PDF generates a standard xlm output file. I need to be able to parse this file and re-load the correct field variables into the correct location on the iPOS xml file. Hence I need a script to be able to do this. I need this job completed ASAP! so no time wasters please. If you know what you are doing then bid on the project. And you will ensure that the XML importing works fine with our accounting software XML format.