Create a Liveperson clone or similar program

I am in search for a program that is either a clone or works pretty much the same way as LivePerson works. You can veiw this at [login to view URL] The purpose of the program is to allow my website visiters to click a button on my site which will allow them to instantly and in real time, chat with me through a private messaging type of program like instant messanger does. This program should be customizable and feel professional. It does not need all the bells and whistles as Liveperson does to keep cost down but will need to have its main features. If you have further questions, please let me know. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows 98 to XP