Http to https (SSL)

hi pplz,

i am working for a website which doest work on SSL.
now i want to make it work with SSL.(http to https)

can any1 tell me what all things i need to do for that?

i also dont knw if this is right way of asking coz i really dont have any idea bout SSL.

neway i need ur help!

i m using suse linux ,php4 and apache as webserver.

waiting for all of u to reply me.