The original Zoom Studio is not that much different from Windows Movie Maker, other than for the fact that it is made specifically for use with Windows. However, there are differences between both, and many people prefer to use Windows Movie Maker (known as WMM for short) because it is easier to use and understand compared to the other one. In addition to that, both WMM and the other can be used on Vista, XP, Mac OS X, and other operating systems. Therefore, it is up to you which one you will choose to use.
Currently, the latest web page for Zoom Studio shows a download link for the Windows Movie Maker version. The download link also leads to a page with all the instructions on how to install the software. The Windows Movie maker web page also explains that in order to use the software, you must have a Windows movie server, such as Windows Media Player, Directflix, or Proactiv. However, you do not really need any of those if you just want to get the basic editing features, which are all that the Zoom home edition provides.
Inzomia is a relatively new web-based product that is similar to zoom studio 2 home edition in many ways, such as its basic features. It does have its own unique features, though, which include a drag and drop interface, a "renderscale" option to soften or enhance the pictures, the ability to make a video with still photos, and finally, the option to make an audio track out of the videos you have taken. Inzomia is a very impressive product and is designed especially well for Windows use. However, since it is a new web-based program, the compatibility issue between it and other programs may be an issue for some time. You can download it for free, but in my own experience, the quality of the videos it makes is not that great, which could be a problem if you are looking for editing functionality. Also, the price is a little too high for my budget, so I am looking for alternatives that would be a bit lower, or even free.