Shoutbox

download the .plsc file (extension of script files) [sometimes the file can come inside a .zip/.rar file and sometimes it comes in a .zip/.rar but that contains all the script files so you should rename the extension to a .plsc or decompress its content in the Messenger Plus! Live script folder]

double click it and will appear an Import Script window where you must accept checking the box and then clicking in the Import button... and It's done the script will install itself automatically...

Now you can access it in your Contact List window or in your Conversation window throughout the Script button (three color boxes beside the MP!L button) if this script has menu... if it hasn't you must access it inside the MP!L script preferences...