The “Old” Apple software is like anything on the PC kind of quirky. Here are some of the asymmetries
1. The iPhoto slideshow is beautiful and most of the web says you can’t just turn it into a movie. You have to use iDVD. Turns out that in fact there is a hard to find option called File Export and on the rightmost tab is slideshow and if you click on it, then you can export it as a movie. There is no HD format thought (1080p24), so you have to manually configure Quicktime with size at 1080HD and then export it. Otherwise the default is really small.
2. If you want to set a password for the me.com gallery, there is no way to do it on the me.com web interface, the only place to do it is on iPhoto. Strange. Strange.