Phone Interview

I'm having a phone interview in a few days and I'm taking down notes from all these threads.

I'm really nervous about this and I was wondering, is it rude to ask the interviewee who is listening to me? And as far as asking questions, do I ask them as if I was getting the job or if I do get the job? Does that make sense? I just don't want to come off as though I already know it is in the bag, but there are some questions I would really like to ask.

Since it is my first interview over the phone and what not, I'm going to the career center for some additional pointers, so hopefully it will go well. I'm scared and really nervous!!!