Having got tinymce working:
#Download the ibrowser plugin from http://j-cons.com/downloads/ibrowser.zip
#Place in the plugins folder inside your tinymce folder
#Copy the file tinyMCE.editor_plugin.js in the interface folder in the ibrowser folder into the main ibrowser folder and rename it to editor_plugin.js
#In the EE control panel go to the extensions manager and select settings for the tinymce plugin
#Setup an image folder with write permissions and update the config.inc.php file in the config folder of ibrowser (more instructions in the readme file in ibrowser folder)
#Add ibrowser to plugin list and inlude ibrowser in one of the button lists, eg.
plugins : "ibrowser,table,advlink,spellerpages,paste",
theme_advanced_buttons1: "bold, italic, bullist, numlist, undo,redo, link, unlink, cleanup, removeformat, formatselect",
theme_advanced_buttons2: "tablecontrols,outdent,indent,hr,justifyleft,justifycenter,justifyright,justifyfull,spellerpages,pastetext,pasteword,code",
theme_advanced_buttons3: "ibrowser",
Have only just got this working, so please add more notes if you know more than me!