Problems upgrading to MT4

Depending on how I have the User Registration boxes set up, the sequence for letting a user choose between signing in or completing the captcha is awkward.

I did a fresh install of MT4 today, and have reset the comment form template module.

First, you choose between signing in or posting anonymously. When you click on the anonymous option, the capcha info appears, which is great. But the only way to make the captcha appear is if you click the anonymous option first.

Because the user name, e-mail, URL and comment boxes are already visible, I'm sure that users will fill all that stuff out and enter it, and the error message says something about entering the wrong text (which is nonsensical, since the user has never seen the captcha).

A second problem -- if you do sign in, you get a message that says "You do not have permission to post," which is going to chase away commenters who have gone to the trouble of registering. THat message should be something like "Your comment will be held for approval," but when I tried editing the mt.js file, it got rewritten with the misleading "you don't have permission" message.

Right now I have to choose between displaying the "You entered the wrong text" message to users who are too quick to enter, and the "You do not have permission to post" for users who are careful enough to sign in. These aren't just aesthethic concerns or wordsmithing -- these messages are not easily configurable, and the horrible phrasing will kill the commenting communities who have to work around them. (Right now, I've had to enable the captcha and open the site to anonymous comments -- not because I want to do it that way, but because that's the only configuration I'm aware of right now that doesn't have these annoying surface flaws.

If anonymous posting is an option, I'd like to see all the comment fields hidden until the user has chosen either the sign-in option or the anonymous option.

If the user selects the sign in option, I'd like to see the user and password fields and the authentication radio buttons right there in the comment form, appearing as neatly as the captcha does.

And of course when I tried to post this to the forum, I got a timeout error. This upgrade has not gone well for me.