Hi jasmine.
I have used TinyMCE for nearly two years, and i use its own plugins for handling files and images (MCFileManager / MCImageManager).
I did some testing with iBrowser, and some versions work with Firefox 2 and older but not Firefox 3, others don't work with Internet Explorer or Safari. So from this i can say that iBrowser has big Javascript cross-browser issues, so i don't recommend using it at all, until the developer as release a new version that works with all major browsers.
My suggestion is to use MCFileManager or MCImageManager both developed by the same team that developed TinyMCE, unfortunately they come at a price.
But probably you don't want to pay a license to use neither of them, so try using TinyMCE Ajax File Manager, has loots of features like the original plugins for TinyMCE.
To see a demo working go here and try inserting a image, you will see a button right next to the Image Url textfield
Some of the features of TinyMCE Ajax File Manager:
- Multiple Javascript Editors supported, such as Tinymce and FCKeditor.
- Fully employ AJAX & PHP to function file management.
- Faster to load and avoid reloading the whole window.
- A Build-In Advanced Image Editor
- Multi-language supported (utf-8)
- Access control supported
- Fully customizable, create your own theme
- Text Editable
- Media Previewable (Movies, Musics)
Try it.. See if it fits your needs.
Good luck.