Does your partner know Presi? If so, then she should come over and help you with it as her grade is depending on it also (you might mention this to her!). If not, can you change to Powerpoint? Or ask someone you work with or a friend who is good at IT stuff to come to your house and help you with the function of Presi if your partner is unwilling? Most people are anxious to help others when they know someone is really tanking.

Sorry you are in this predicament. Hope you get a better partner for the next project. Gheez ...