If you consider yourself to be an advanced Linux user, or maybe even a free software developer, you will find the information on this page useful.
Latest Source Code
If you want to try the latest source code you should get it directly from the CVS repository. This page gives you detailed instructions on how you can access the CVS repository. Remeber to use grig2 instead of modulename.
If you just want to browse the source code in a convenient way, you may also find the ViewVC web interface interesting.