Yes, good luck FinnVette, I knew you would chime in when you were ready. I too hope that Creative doesn't leave you hanging for too long. You may want to call them. It's easier to put aside a PM, IM or email, but if you call, you will speak with a person.
I am hopeful that all will go well, and you will unleash the true potential of your 325i. I have a lot of respect for what you are doing, and it will benefit a lot of E90 325i owners here.