Grisu is supplied as a Zip file containing Java components and is actively tested on Microsoft Windows, Mac and Linux systems. It's likely to run on other systems with a suitable Java environment. Its opening screen looks prety much like that shown to the left, but it does vary in detail depending on your operating system of course.
You must have a suitable Java install, and it should be version 5/1.5 or later. Most people will find that they already have all that's needed and if not, Java is easy (and free) to install. However, some sites restrict their people's ability to install applications so you may need to speak to your local IT support people if you don't have the necessary versions. If you think you have Java installed as required, find your operating system below.
Download the ZIP file and extract its contents to somewhere suitable. If you like, Grisu will run fine if extracted to your desktop, and you will almost certainly have all the write permissions you need there. You may decide to put it somewhere else- that's fine, too.
Create a shortcut on your desktop by finding the file called grisu.exe in the (extracted) Grisu directory and dragging it to your Desktop. Alternatively, you may like to make it a menu item.
Similar to the above, extract the contents of the ZIP file to somewhere appropriate, locate the script called grisu.sh in grisu/bin and make a desktop short cut or menu item. Most linux systems appear to require you to set the working directory to the location where the script is.
More to come
If grisu does not start cleanly from the shortcut or menu item you have made, here are some suggestions -