Just a note, I am working on this plugin this week. I have already addressed many of the issues here and believe I have fixed most.
While I am at it, I am adding support for multiple databases (i.e. wordpress in one db, VB in another)..
Unfortunately, there seems to be a new function in either VB or WP (guessing WP) called sanitize_url. It causes conflicts and fatal errors when posting. I have rectified the issue by creating a clean version of functions_wysiwyg.php where just the function name (and its calls) are changed. I saw no other way around it.
I also am hoping to add support for posting via xmlrpc, i.e.
Microsofts Live Writer and other such applications..
I will be working on this off and on during the week. Hope to have something for you all soon..