Sorry that I didn't answer this more quickly. I suspect that you're on the "View and Submit" tab. Go to the "Transcription Job" tab to actually enter/cut and paste the transcription into the HIT. Then you go to the "View and Submit" tab to actually submit it.
Exactly. It's not uncommon to be confused by their HIT interface, though, so last month, I put up a blog post that explains it in plenty of detail. And OP...happy to see you finally giving transcription a try!