The tabloid is delivered along with the newspaper every morning. If the newspaper is delivered but the tabloid isn't, then you might have to reinstall Superstar. In the CD Menu (Autorun) choose "More Info" and then choose "Reinstall The Sims Superstar".
If the newspaper isn't delivered either, then you might be missing the pedestrian portals on the lot (you probably also won't get any visitors). Try pressing Control+Shift+C (at the same time) to make the cheatbox appear. Enter prepare_lot and press enter. If that doesn't work either, get the Mailbox/Trashcan replacer from SimsPlus
. You can also find that in the "Utilities" section of this site.