Hi Adam,
We are getting JavaScript Errors preventing the insertion of code from the code snipit drop down. When an item is selected from the dropdown the dropdown lable goes blank and no code is inserted. Instead we get an "Unknown runtime error" error message.
When using FireFox there is no problems. When using IE 6 or IE 8 beta we still get the error, but the code is inserted correctly.
The code sniptes on your demo seem to work correctly, however I have manage to recreate the issue in a simplified project, which I can email to you if required. This project can be viewed here:
Many Thanks,
Ady