in an event, action button...
Show text: \name[Susan] Hi Aluxes, what have you been up to?
Show text: \name[\n[001]] Hi Susan, just fighting goons. Not much else.
The first one will show the name Susan in a box above the message.
The second one will show the name of your first party member in a box. I could just have easily said \name[Aluxes] but sometimes you don't know who's going to be first (in this case I should have also put \name[\n[001]] instead of Aluxes in the first message.
Your new script should have been inserted into a new slot just above Main (not INTO the Main script - create a new script above that one, give it a name, and paste your new script in there). If you put it above all the others, then it wouldn't have redefined the normal message window.
If it doesn't work, I need you to post 2 screenshots. First go into your scripts database and scroll down through the scripts so I can see where you inserted it - take a screenshot of that. Second, go into the event where you've got the messages that should be displayed, and take a screenshot of that. Post them both up here so I can see.