You cannot access the upload section until you pay for and submit the application.
Once the application has been paid and submitted, the sponsor will go into immi (via your account or their own) and create a new app that says sponsorship on it for partner visas. In that application, there will be a question that asks for your apps TFN number. The sponsor enters that number, completes the app and submits. The apps are automatically tied together via your TFN.Thanks much for you help! Just another question on Form 40, as I have read the partner's visa booklet it says "completed application form 47SP and form 40SP (completed by your sponsor), which can be lodged online via ImmiAccount"
Do I have to start a new application for form 40 then import into my current application of form 47? I am not too sure how this can be done online. Thanks again for your help!