[TYPO3] tt_content extensions not showing

[Todd Ellison]

Hi all,

I don't know if I am posting in the correct place, but it looks like the 
  kickstarter board is dead...

I created an extension in the kickstarter about a year ago, and extended 
tt_content with a few fields. Sometime in the interim, those fields 
stopped showing up in the backend for editing. The fields still exist in 
the database, and look like they are still defined in the TCA. Can you 
guys give me a clue as to where the ability to edit particular fields is 
located in the code for the extension?

Thanks
Todd