Advanced Guestbook will not allow users to post html message

Advanced Guestbook will not allow users to post html message. I have html enabled of course. This is what I enter:

<img src="http://www.whatever.com/image.jpg">

when you try to submit, it give a message like this:

"Your message contains some invalid words. Please correct it and re-submit."

I have html enabled, AGcodes enabled, and smiles enable. What am I doing wrong?

Thanks

This is a restriction of 'max word lenght'.
Change the value to 200...

Thanks,

Now that it's explained to me, it so obvious!