35466 Clickbot for load testing

I am looking for someone to write a Clickbot/Hitbot that will visit an entered web site. The bot is to crawl through the web site randomly clicking on a random number of the links that leave the domain - links could be direct links to other web sites or advertisement links. Following the newly clicked domain the bot is to visit a random number of the pages of the new domain up to level of 3 deep - do not need to leave the domain of the new site. The bot is then to return to the parent (beginning URL) and continue crawling the next link that leaves the domain. Once sites are visited the bot is to visit another page of the original domain and do exactly the same. The reason for the randomness above is that I want the bot to totally mimic the patterns of a normal web visitor. Adding a random behaviour can do this as well as a randomness in delays before visiting next pages. I would like an application with a textbox to enter the original URL - textbox will also display the current URL being visited. In addition I want a browser window that shows the activity, page of the web site being visited. I would also like the bot to display the proxy IP address, client IP address, Browser type, operating system etc that is pulled from a lookup table or file. The application needs to be able to run extremely efficiently without lagging the PC or server. A scheduling option would be good so that the application will start and stop automatlically between defined hours. The application needs to use HTTP proxy servers to mask its origin. In addition it needs to be able to randomly select its real client IP Address, PC identity, browser and operating system, and isolate or control cookies - the application needs complete anonymity. I need the ability to update the proxies daily from free sources, the application taking the proxy out of a CSV file, using the address and placing in a used proxy file for later reuse. The reason for the above is that I would like to do load testing of my web servers. I would like the application to be able to run multiple instances of itself at the same time being able to ramp up or down randomly the number of instances running. Each instance has to run like it is in a virtual environment, such as the proxies, identity, and browser types. Each instance is to use the proxy file removing its IP and placing in the used list so that other instances don't use the same proxy IP address. The application has to able to run under windows XP. I would like it programmed in Visual Basic 2005 and require the source code.