I used the "type on a path" to make a curved textbox on the top of a circle but when I want to have the text curved on the lower part of the circle it has to be upside down.. Any help is appreciated.
Use the 'type on path' tool to type out your words on the circle, then while you have that circular type selected with the selection tool, double-click the 'type on path' tool to pull up the 'type on path' options dialog box. There you will see a dropdown menu and a checkbox. Check the box to invert the text (something like that), then play around with the 'ascender/baseline/etc.' options in the dropdown menu to get the text on the outside/inside/etc. of your circle.