Britney Spears looked back to her old self yesterday, flashing a huge grin shopping on Robertson before slipping into a tiny purple tube top for dinner at the Little Door restaurant. Her getaway in Cabo must have been good for her tan and her soul, but Britney wants to give her bank account a boost, too. Not only is she rumored to have been offered a role playing a lesbian stripper in Quentin Tarantino's next movie, a remake of Faster Pussycat! Kill! Kill!, but apparently she's also been trying to shop around staged photos of herself frolicking around Mexico in that hot white bikini for $1 million. Britney's rep has claimed that she hasn't given anyone permission to sell her vacation photos, but all her posing for the fancy camera might suggest otherwise.