You are adding extra items instead of passing the stuff as columns.
See this example
SwissDelphiCenter.ch : ...show Columns in a TListBox using Tabulators of different widths?[
^]
Once you have set up your tabulators you should be adding your data like this:
AccessCameraAppForm.ListBox2.Items.Add (AccessCameraAppForm.fdloadmainToListbox.Fields[1].AsString Tab + AccessCameraAppForm.fdloadmainToListbox.Fields[1].AsString + Tab + AccessCameraAppForm.fdloadmainToListbox.Fields[2].AsString);
Edit.
Based on your comment below and the sample query in the comment in your code, you are not using the correct query to extract data from the database. Try something like this
select [ID], [Name], [Address], [Phone], [E-Mail], [Vin], [Year], [Make], [Model], [Job Hours], [Repair Order Number], [Purchase Order Number], [RO Description]
From main
Note, I've omitted the graphics column