Anatomy of a Comeback Julia Rubbish Updates Her Press Kit    Remember those lips? That svelte slip of a figure? Well, it's Y2000 now...  and a Y2K babe has to project her, uh, personality more assertively.      Rubbish!   See what we mean? She was a Pretty Ho before, but now she's a Hot Ho. That's why she finally got invited to meet the Presdent in the Oval Office.   BACK TO WHO'S WHO.