The granddaddies of AIDS orgs celebrate birthdays this week. Tonight, the Gay Men’s Health Crisis marks its 25th anniversary with a benefit dinner featuring appearances by Senator Hilary Clinton, Rosie O’Donnell and Cyndi Lauper. The ACT-UP (The AIDS Coalition to Unleash Power) hits 20 with a speech at the LGBT Center tomorrow night at 7PM by co-founder Larry Kramer and a march to Wall Street on March 29 to demand universal health care and affordable meds.