The normal link was Rsbot.org , but it seems dead..
You can aswell try to download PeecsRsbot at Rsbot.info, its some kind of editted version with better functions (They say)
Otherwise, look for a rsbot download in the Rsbot section off Sythe..
Go to the main page, scroll down, theres the rsbot section, look around and if you can't find it post it in Rsbot Help.