For the Orange Specific stuff, you need to look in the Extended ROM (or Ext_ROM). This may have been overwritten by the Dopod ROM, but some ROM images don't have an Ext_ROM. There are registry hacks to 'unhide' the Ext_ROM, or you can use Total Commander, the free File Explorer.
The Ext_ROM contains all the cab files needed to customise the 'Orange' parts of the device. If you still see Orange files in your Ext_Rom, you can just run them (but try and find out what they all do first, as some need to be run in a specific order- look also for the config.txt file, which should specify the installation order). If these fiels are no longer in your Ext_ROM, someone may be able to extract them from their own M700 and send them to you. You can run them from any location and they must install to Main Memory.
These files will include the Orange Today interface, the Orange connection settings, and the Orange PIE Favourites.