This thread was originally posted on the cpg1.4.x support board, as the thread starter obviously couldn't accept the fact that cpg1.5.x goes unsupported, so he dumped his question on the support board for another version, which is just lame. I moved this thread here.
The links on the plugin page that lead to plugins for cpg1.5.x aren't actually broken - they work as expected for those who
are allowed to access them, which is the case only for members of privileged groups (the testers, translators etc.). As cpg1.5.x hasn't been released to the public and goes unsupported anyway, this should not be a problem. Those who are not allowed to access the plugins yet will get the error message
The topic or board you are looking for appears to be either missing or off limits to you.
Option two applies for Mozzerella (as well as for all other "regular" users): the board is off limits!