I'm running kompozer 0.8a3 (ppa version) on Ubuntu 9.04. When I want to insert a "Submit" button in a form, I try "Insert > Form > Define button". If I select type "Submit" and value "Send dta!", I got this code:
<button value="Send data!"></button>
which shows an unusable button.
I'm not an expert, so I've googled and found that the right code should be:
<input value="Send data!" type="submit">
At least this works...
The bug is sure, but someone should confirm that I'm right with the solution :).