1. The idea is a great one.. but is this not only an implementation of a contact form?
2. The back-end is difficult to use i) Each item should show the first few words of the comment so that at a glance the admin can delete or decide to review. ii) There should be a "click to open" next to each item as otherwise you need to go to the top each time. iii) multiple selection of items to preview does not work. iv) The administrator can add his own ideas.. why?
3. A "hover" comment such as "All Ideas are entered anonomysly" above the button would be good.
4. Nice touch that once admin has logged in you can select the list by clicking the same "I have an Idea" button.
I will use this once it is cleaned up a little. "I have an idea" is a "Good idea" !