In PowerPoint 2007 -- and PowerPoint 2010 -- the animation effects are all located on the Animation tab in the Office ribbon. To make text fly in, you simply need to select the text and choose ...

You can only highlight text in PowerPoint directly if you have PowerPoint 2019 or subscribe to Microsoft Office 365.

For text to overlap in PowerPoint 2007 it has to be entered into separate text boxes. If you think of each text box as a sticky-note, you can envision how PowerPoint works with objects.