How do i reference my JSON?

Upon getting my JSON from a project file and at the point that the request is completed I am parsing the data and printing it out.

This works fine if I print the data AJAX.LastData, but If I print JSON.ToBeautifiedString nothing appears.

How can I reference the actual JSON contents for future calls? I was under the impression that the parse JSON line assigned the ajax data to the JSON(?)

-> JSON: Parse JSON string AJAX.LastData

-> [DISABLED] Browser: Alert ""&AJAX.LastData //this prints out nicely

-> Browser: Alert ""&JSON.ToBeautifiedString //no data?!?

Cheers