Ajax Chat Modifications

I would like a few modifications made to a very simple ajax chat script, which can be found here: <[login to view URL]>. 1. I would a user login/registration system added to the script.? The form should also include reCaptcha to prevent spam, and should include a "Remember Me" check box.? The user should not be allowed to chat until they have registered/logged in.? Also, I would like the form to send an email link to a person who registers, and they would have to click n the activation link before they can login.? This is the standard kind of login/registration system seen on most websites. 2. I would like a basic admin panel for the script.? In the admin area I would like to be able to add, edit, ban and delete users.? The user control should be? accessed via the "Users" menu.? Also,? the admin panel should include a bad words filter and flood control to prevent to many server requests, and these should be? under "Settings". 3.? At the moment, all of the messages appear on one long page, but I would like them to be paginated over several pages.? ? I would like to be able to style the page navigation? buttons fully and also control how many messages are shown per page, which should be under the "Settings" menu in the admin panel. 4.? The application will be used as a platform for people to? advertise their products/services, and I would like a category system? added to the script.? Basically the user should be able to click on a category such as "Books and Comics", and they will then only chat with other people who are also in the "Books and Comics" category/room.? The default category should be "All", which would allow the user to see all posts? in all rooms.? The categories will act as a? filter? of sorts.? ? The category menu will be a set of image buttons at the top of the page. 5.? ? Once logged in, the user should be able to select their trading status from a drop-down menu.? The menu will consist of three options: Buy, Sell and Swap.? If they select "Buy", they will only? be able to chat with people who have selected "Sell", and vice versa.? If they select "Swap", they will only be able to chat with people who have also selected "Swap". 6.? The core chat script is 4 years old and could do with? being updated to make it more efficient.? ? ? ## Deliverables I have a very nice design that I will be using for this script, and I will provide the winning bidder with a link to the XHTML/CSS layout to ensure compliance.