I did get confirmation from Apple that the bug is fixed and submissions are working again.
If at this time you can not submit your new podcast feed - it is likely an issue with your feed.
Make sure:
1. You have at least one episode live on the feed
2. You have a 1,400 x 1,400 pixel image for your show - .jpg (RGB) or .png
3. You have verified your feed at feed validator - http://feedvalidator.org
4. You are not hosting your files at dropbox - but rather at a host that specifically supports byte-range requests - like libsyn.com
5. You do not have music from one of the 4 big record labels - No RIAA music is allowed on podcasts. Only Podsafe music is allowed - http://en.wikipedia.org/wiki/Podsafe
If you submit your RSS feed per the above and still get an error - start a new thread and include your RSS feed you are having issues with - do not continue on this thread.
Rob W