Thanks Spocke. We've enabled both the filemanager and imagemanager in general.tools. We're still having problems though using the following 2 methods. If we can provide a solution for one of them, that would be great:
1) When we click on the insert file icon, it opens up the Moxicode Image Manager window. If you close it and re-open it, it then opens up the Filemanager. So, we thought we'd try the following solution:
2) we removed the filemanager from the editor toolbar, so user must use insert image. This opens up the image manager and we've added imagemanager and filemanager under general.tools, so that the user can switch between imagemanager and filemanager. The problem now is:
User needs to insert pdf. Clicks on imagemanager. Clicks on filemanager in the "moxicode imagemanager window" to switch to filemanager, selects pdf to insert onto the page. Tinymce has inserted the code as an image: <img src="pdffile">
We don't seem to be able to find a solution for 1) or 2) above.