OK, I tried posting a new version but it appears to keep rejecting my file (it appears on the "current files" list but not on the main page).
Meanwhile, I've attached the mod file, so if anyone wants to try the new mod out they can download it here (until the mod site is "fixed" I guess
Changes in 1.05: Added a "del" option to shouts for administrators/moderators to allow for the deletion of shouts.
Added "$gzipCompression" option; this defaults to true but can be set to false if you experience issues.
Increased the security of a few functions as a precaution.
Fixed some bugs related to not using "home.txt" as the chat file. Now, it is possible to use a different file for each theme, or, if you're intrepid, a different file for different boards/users/etc. See index.template.php and search for "shoutFile".