I know the access to SVN is not very straightforward nor comfortable for non-developers. SVN is a software managment system. Various developers can work together collecting all their modifications/additions to the source code in a centralized SVN repository. Guest may checkout the latest versions and use them on their systems.
When I moved to CMSMS some weeks ago I found that no one is active maintaining the Guestbook nor Smileys module. I made some changes and fixes to this modules and committed them to the SVN. But I never got any feedback to my modifications.
I hesitate to create public releases because of this lack of feedback. Additionally I am not sure if it would be desired by the original maintainers. But if there would be a request or at least feedback I would happily provide public releases of this modules.
You can find a example of the latest version on
http://www.tobik.de/gastbuch.html
Tobias