To install it you need several packages
For Fedora 12 you will need to install: java-1.6.0-openjdk-1, java-1.6.0-openjdk-plugin-1, fuse-libs, fuse, xdg-utils
If you don't need the full system integration you don't need fuse-libs, fuse, xdg-utils but you will loose having a virtual drive of your online data on the desktop