How do you register a business with a partner? 1 Answers as of January 11, 2012

I am in the process of opening a business with a partner. I have the knowledge of the product and the source of inventory. My partner to be has a ready to go web site. 1) What is the process of the registering business with a partner? 2) What should I be aware of before I register? 3) What should I think of for the future reference? 4)Is there a way to protect yourself from the beginning and save yourself from the painful break up (partners break up) 5) Could you please point me to the right source of information that will be helpful for me in my venue. (web sites, magazines, news papers) 6)I am not sure what is the complete steps when you register travel agency business - I would highly appreciate your help.