I put this in to php.ini
include_path = ".;c:\php\includes;C:\wamp\zend\library"
C:\wamp\: here I put the zend frame work
when I run the WAMP sever , I seen a page as usual
How I check whether it's install or not,
How I start my work in the frame work
check the output of php_info() to see if you settings were applied as expected ...
also a screencast to let you get kick off.