I need to find out where someone works I have there name address and phone and general area:)

You could try contacting local professional organizations who might be able to tell you whether they are a member, or even 411 the phone company if they have a business phone in their name. You can also write a letter to the IRS, if it is about money, and they will forward it. However the IRS is not going to tell you if they received a reply.