Installing Qmail

[Waterfront Internet Service]

Hi,   I am currently running sendmail but wish to change to qmail.   I have read the instructions but they all say how to upgrade from sendmail to qmail. I want to delete sendmail as if it never existed and install qmail as if I never had a mail program installed. I know I will loose any messages that are in sendmails queue. Is this possible and how?   Regards, Steve