I’m not sure I understood your question about formatting, but if the problem is the line breaks: I think the tinyMCE editor generally adds paragraph tags (<p>) for each new line. Try holding down the ‘shift’ key when you print enter to get a line break instead (a <br>). You can check the ‘html’ tab to see what’s actually being saved, and it should display in the infowindow exactly as it was saved.
You can change the list position by editing the template ‘map_poi_list.php’ – there’s a section in the documentation about how to copy the template to your theme directory. Take a look at the default template and let me know if you get stuck.