Website Collector/Sender

Need program done on c#. Need it to be written so that if? the site makes any small changes to anything, it can be easily repaired. Need? the program? to log into site [login to view URL] (nudity warning), would like to be able to configure settings, ie. male, straight, online now.? It will collect 1000 people online now and then comment on a picture in each profile collected. If profile is private, send crush. Would also like it to add friends and maybe post bullitens if possible. Might need an account creator as well and will more work to be done if this goes well.