help with win2003 small business server

I am installing a new windows 2003 small business server in my office, and I am now running a windows nt server. How can I transfer my shared files, and my quickbook files to my new server?What is the easiest way of doning this? Please help me. Can I use active directory with small business server? If so how. One more question can I stop the server from locking it self after I leave it alone for a while. PLease help.