>> If I double-click an image, it is not shown the height and width of the dialog box as it did in Cute Editor.

RTE handles this logic differently.

When you double-click an image, the original size of image will appear in the corner of preview panel.

By default, the image code will be <img src="/uploads/j0262681.jpg" alt="" />

If you type a number in width and height field,  the image code will be:

<img src="/uploads/j0262681.jpg" alt="" style="width:45px;height:29px" />

Hope it helps.

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