since all these projects are commercial onces, I am not going to (and not allowed to) make them open source. But here's a simple hint on how you can implement the uploading mechanism in your app:

1. make a simple TinyMCE plugin which will open a new window for a user
2, in that new window, there should be a form with at least a file upload field, and action would point to your app's image upload controller
3. when user hits the upload button, the image is uploaded, and content of the upload window is replaced with a Javascript which would insert HTML code for the newly uploaded image into your active TinyMCE editor of the parent window and close the upload window

that's basically all. you can enchance the uploaded by allowing user specify image size, backlink to original image, alignment, but the basics are explained above. Shouldn't actually take much of the time. Let me know if you're stuck and I'll see if I will be able to help your beyond that point.

cheers,
mike.