Serial For Adobe Premiere Pro 1.5 Where Can I Download A Genuine Adobe Premiere Pro Cs4 Trial? I Dont Want Hack I Just Want The Trial Version.?

Where can i download a genuine Adobe premiere pro cs4 trial? I dont want hack i just want the Trial version.? - serial for adobe premiere pro 1.5

Plz I need it for school, I have some real valid CS3 serial number, but may obtain a copy of the demo, and it needs to track version of Adobe Premiere Pro