OK - solved - I saw this post and used the modified version from the blog
"Hey guys,
It's been almost a week since my original post in this topic and 'till now no replies.
I received an eMail from someone not member of this community who saw the post and offered to help me sort the problem out. I sent him the modifications I made to the bot and, before it could be delivered to him, he emailed me back with a recoded plugin that works wonderfully in Joomla!1.5 WITHOUT legacy mode.
He asked me to post here the URL for his blog where anyone interested can download the modified version.
caaron.blogspot.com
Best regards,
Airton"