here is a silly question:
after you select the text tool, do you just click on your image to get your text box, or are you dragging the box to the size you want it to be?
If you are just clicking then you get a tiny textbox that little or no text will fit into.
There is text in your box (you know this because the layer title is pulling in the text that you typed, and it pulls this from the information it finds INSIDE the text box) so it is either a matter of font sizing, or text box sizing.
Try click and dragging with the text tool to creat a large text box, and then see if youre text is visible (with a font size of ~12 or something)
Hope that helps.
