(Salem, OR)  --  Authorities in Salem are on the lookout for a female inmate who walked away from a transition center Wednesday.  Marion County Sheriff's deputies say 31-year-old Tristen Devore was scheduled for release today after serving a sentence for theft, burglary and fraudulent use of a credit card.  She is described as white, five-foot-six, weighing 160 pounds with long dark hair and blue eyes.