• Indents for bullets should be handled in the define new multi-level list dialog. See How to control bullets in Ribbon Versions of Word by Shauna Kelly
• If by bullets, you mean what we Americans call numbering, see the related article: How to create numbered headings or outline numbering in Ribbon Versions of Word by Shauna Kelly
• Page layout has never been the location for handling indents. See Margins and Indents in Word

Word 2007 has not changed recently. It is out of the support cycle and I do not believe MS is publishing any updates, even security updates.