This bug fix also re-adds some functionality to the forums that existed in CS 2.0, but was removed in CS 2.1. It includes 3 themes, "default", "basic blue", and "Genus Order" which is a modified "basic blue" theme that I use for the Genus Order web site. There were some major changes/fixes to the CSS files, so if you are expecting to only use some of the .ascx files, be aware that you may need to update your CSS files as well.
One thing that you will notice is that some of the "basic blue" .ascx files that were in the original CS 2.1 release are not included in this fix. The reason for that is that they are not needed. CS 2.1 added a new piece of functionality to themes. If the file doesn't exist in the theme being used, then it is pulled from the "default" theme. Since the "basic blue" theme did not need to change the functionality that was provided by some of the "default" theme files that it was overriding (after they were fixed), I removed them. The themes in this zip are complete and do not need any additional files to function.
Here is a final note about CS 3.0. From what I have seen thus far, the theming engine of CS 3.0 is going to be a thousand times easier to work with and you will actually be able to create/design almost every single page of the site (admin pages may be the exception). Telligent is just beginning to inform people about the changes and they are looking great.