Hi luo
I am sorry to have to tell you that the same problem remains.
When you are logged in, click to http://audio-gear.org/listing/b77-mk-i/?view-template=Single%20Listing%203%20Desktop
Then click on 'edit listing' button'
This creates a post with the custom post type slug 'dbedit'
Now you will see the SUBMIT button and the problem with the button formatting.
At the moment the CRED form settings are set to 'Styled Theme'.
Regards
Robert