Quick update, images now uploading and linking correctly, FCK customised in code, showing Office 2003 with custom button set, also text display now in Arial.
For those who are looking these are the changes:
Font change:
fckconfig.js line 30 - FCKConfig.EditorAreaStyles = 'body { font-family: Arial }' ;
To customise:
fckeditor.js line 35 - this.ToolbarSet = toolbarSet || 'Custom' ;
custom/contents_insert_ContentValue1.js line 3 to change skin, line 15 to Toolbar end to customise tools
Repeat on following file
custom/contents_update_ContentValue1.js line 3 to change skin, line 15 to Toolbar end to customise tools
Hope this helps others.
Colin