Ah, ok thanks! It's funny how much I forget being way for just a day! I spent the entire day/night yesterday launching a new SMF forum, including having to port an existing database and all users over to the new forum (the old forum is over 7 years old... which I launched back in 2003). It worked! Now trying to get my mind back on this stuff, where my own interests are.
Do you think there should be an admin panel where the user can set the desired number of days before an ad expires to send the warning email? Or just skip all that and hard-code it?