I think HomePage will be around but you have to do everything on line. I upload a folder of pictures I want to use in a folder titled for the page, i.e "grandaughter-2" or similar, to the Pictures folder on my iDisk. Then I go my .Mac account online and select HomePage. There you can select that folder of pictures, a theme and go from there. There are pros and cons to both HomePage and iWeb. I think HomePage sites load a little faster but not they take more work to create.
If you do a lot of uploading to your iDisk I found an application,
Transmit, that is 5 to 6 times faster than doing it via the Finder. It is so much faster!