I followed through this tutorial
http://zendgeek.blogspot.com/2009/07/zend-framework-and-jquery-jquery-date.html
when I done I found Only 2 text boxes are displayed. Datepicker is not loaded. so, not the problem with class library inclusion rather it may be something else that I can’t figure out.
I skimmed that tutorial, it didn’t seem very indepth. Don’t give up. Just like most things, getting started is the hardest part. I would suggest you follow the tutorials on Zend Casts. Here is one about getting started with ZF and Jquery: http://www.zendcasts.com/working-with-zendx_jquery/2010/07/