Shoutbox

I installed Messenger Plus Live and it doesn't work with Windows Live Messenger 2009. I was fine with 8.1 of WLM but Microsoft sent me a message stating I need to upgrade and I upgraded to 2009 but Messenger Plus would not work. I tried downgrading to 8.5 at least but it gave me an error saying Castrophic failure. I tried repairing messenger Plus but it didn't work. I tried uninstall and reinstall Messenger Plus but still doesn it. I've tried solutions if any programs interferes with WLM and Messenger Plus Live but I don't have any of those programs that interferes with it. Any ideas?