Newbie- returning to oriignal ftp load uo page

I linked up my domain name and hosting account and that was fine but then manged to bury myself way into smart ftp and really lost. How do iget back to that page or maybe just starting over by disconnecting the domain and hosting account? I removed smart ftp from my computer and resubscribed but it stuck with that domain name/account and at that same lost place within smartftp instead of being able to start over. Thanks