Did you check your SPAM filter? It sounds like you used your school email address for the validation, but communication via email isn't getting to you to that email address.
Send me an email at jtranber at adobe dot com and I can look into it.
Please note, per the instructions: You can still install and use the product immediately by selecting the 30-Trial option during installation.
Hope that helps.
Adobe Systems, Product Manager, Customer Advocacy - Digital Imaging