There is a syntax error in email_verify.check.inc on line 28.
In addition, the access permissions on email_verify page pose a real security/privacy risk since anyone with view access content permission (everyone) can view all other user email addresses. The path should be set to:
and the access arguments should be set to:
Attached is patch which fixes this (patched against 6.x-1.x-dev 2009-Mar-19).