ISP Changes – Seeking assistance

I have posted this a few other places but haven’t received an answer yet…

Due to family needs (small family business) I am now the System Admin for our company. This is not my normal job function so I am learning as I go. Not the best idea, I know, but we have no other choice at this time. I WISH I could hire a consultant.

So..I am asking for your help here. We are in the process of changing ISPs. In order for our email to work (using exchange 2003 on SBS Premium) what will I need to change…update? Will I need to contact the company our name is registered with? I am just not sure what steps I need to take when we receive our new static IP.

Thanks!