[kh99]

There is a $vbulletin->session->created variable that's true when a session gets created, but I think it's kind of tricky to use, since sometimes the user gets redirected after the session is created and it won't be true anymore when you go to check it to display the text. I tried to write a plugin that checked that variable, and it never seemed to be true when logging in.

There's a vbulletin function vbsetcookie(), but it doesn't look like it allows setting of the expiration time, so I guess you'd have to use the php functions directly. I really don't know a lot about cookies so it's probably better if you research that if you want to go that route (unless of course someone else wants to provide the code).

You could also add a column to the user table and store the last time they saw the text, then you'd just have to check to see if it's today or not, and if not show the text and update the field.