Silvio Berlusconi's Hooker Wrangler -- Thongin' Out in Miami ... Before Prison

This is Nicole Minetti ... one of the women convicted of wrangling up prostitutes for disgraced Italian Prime Minister Silvio Berlusconi ... and by the looks of these pics, you'd never guess she'd recently been sentenced to 5 YEARS IN PRISON.

According to Italian officials, Minetti was one of the key people who supplied the hookers to Berlusconi's legendary "Bunga Bunga" parties. She's been sentenced to 5 years in the big house ... but that's on hold 'cause she's appealing the case.

In the meantime, Minetti's passing the time by romping around the beaches of Miami in a thong ... just like she did on Christmas day. Which begs the question ... how the hell did she get in the country after she's been convicted???