Sorry, don't know about uploading files. What I said before is where you'll probably have to look unless Pub 07 is vastly different to 03. It's probably in the "Format" - "Paragraph" menu and will be to do with the spacing (or points) after a paragraph....or before a new style...after a particular style or something like that.
Good luck, sounds a little annoying. Of course, you could "cheat" and put the heading in it's own little text box and then line it up with the other text box. You have to make sure the second text box does not have "Text Wrapping" so you can get the first text box really close without making the text in the second text box move away, so to speak. Sounds complicated but it's not! Just fiddly.
M