Ok, on the index of mybbcodes I went and clicked on Tags Cloud below in the footer [Level System]http://www.mybbcodes.com/showthread.php?tid=38
I get this message?
This is because that thread was deleted!
The Tag Cloud in the index page was installed there by Ghazal and it is a static section manually written.
It is quite a coincidence that you wrote about this, because i just developed an Advanced Tags Cloud plugin that will be released in one or two days.
It has been tested on another forum and had many features added to it since the first beta testing.