It sounds like you're creating the form in FormsCentral. You have limited options in the FormsCentral designer as far as layout. You can place multiple fields on a line, or one field per line. If you create the design/layout in a program like InDesign or Word, generate a PDF, and add the fields form in Acrobat, you have complete flexibility over the placement of the fields.
The items in a dropdown field are limited to text that are all the same color.
