PHp Login Script V2.3
===================================
Updated - 05/05/2010

* NEW! Added user levels
* NEW! New and simple Admin area. No need to login separately as admin.
* NEW! Automatic or Manual activation feature for user registrations
* Removed SMTP for emails, just uses php mail function
* Fixed cookie and session vulnerabilities (session hijacking, XSS and injection)
* NEW! Added salted passwords with sha1 hashing
* Fixed error messages using GET
* New user edit feature