iweb 09.... help!

[splish]

Hi, i have just upgraded to ilife 09 and i am loving all the new features. I have just published a website with the iweb 09 to an FTP as opposed to mobileme. Does anyone know of an add-on or a way of setting it so i can have a password for a page on my website? i take picture professionally and want to put a gallery on my site that is only accessible to certain clients. I am not sure if this is possible?
is there also a way of watermarking my photos or stopping people from saving to their hard-drive to print themselves?
Thanks guys