Complex sentence: Students went on to form a Myspace page dedicated to supporting there headmaster, and 100's of students signed up, the anti-abortion groups and newspaper's attempts to damage the schools upstanding reputation failed, particularly due to widespread local support.
Split into simpler sentences: Students went on to form a Myspace page dedicated to supporting their headmaster, and 100s of students signed up. This resulted in the anti-abortion groups'and newspapers' attempts to damage the school's reputation failing, particularly due to widespread local support.