What you can do is get the "Other" version listed at the bottom of the download list. All you do is unzip it & use. No installation necessary. Sample of what I mean here
Unzip it & use
* But make sure you have Java 1.5 on your computer before you try to run it.
Java 1.5 (take the JRE) & get the "Offline" version which is about 16 MB in size.