Yesterday Boston Public Schools posted more than 600 teaching positions for the 2007-2008 school year, accelerating the teacher hiring process with the earliest new teacher posting ever. The district is seeking outstanding licensed educators teachers of pre-kindergarten through high school to apply through the on-line Career Center. Pictured here, Carol Alvizures of Roxbury, a recent graduate of the University of Massachusetts Boston, reviews open teaching positions on-line. Ms. Alvizures, who holds a teaching license in secondary education, has been student teaching at her alma mater, Madison Park Technical-Vocational High School. She attended Boston Public Schools from kindergarten through grade 12 and hopes to teach in the district beginning next September.