274310 Reusable Java Components

We need Following components developed in Java (we will purchase source code and licence). Application is currently using Servlets/Jsp (Non-Struts / Spring) -but can be incorporated quickly. 1.) User Registration : User Registration / Email activation and Forgot [login to view URL] should also check if user registration exists using [login to view URL] encryption and decryption would also be preferred. 2.) Single Sign On : Bug Free implementation of Open SSO or SSO like functionality for maintaining user sessions(Other solutions may also be considered) 3.) Slide Show : Images could be stored in a database or directory. and displayed in a image panel either randomly or sequentially .Clicking on the image should redirect user to another page. 4.) MessageBoard with Captcha integration : Allow users to post comments and replies to blogs. Libraries to be compatible with Jdk 1.5 and higher Should work on tomcat 5 or higher. Code should preferrably be accompanied by unit [login to view URL] contact us for clarifications on requirements.