VFP 6.0 Report Modification Question, Add Child Files Relations

I am spending way too much time trying to add a third table to an already existing report and getting the information correctly related and indexed to display accurately. Is there anyone out there who could offer a suggestion to me?
I have a report that I have created in FoxPro 6.0, the wizard apparently only wants to allow me to add one child file and I want to add two. I tried adding the database under the 'data environment' function but I can't seem to establish a relation this way between the parent file. When the information is displayed it uses the 1st record of the 2nd child file instead of the information which relates to the record of the index. What am I doing wrong? Where might I find the answers to my question?