CMS Made Simple Forums

I read about this great news mod:
http://www.i-do-this.com/blog/41/Making ... -by-Author

But it have an error with Categories add/edit tab, that do not show list and options.

I have 1.11.7 cmsms release installed.

Any suggestions about changes/corrections?

What error....?

Sorry, thanks I do not edit all files.

Thanks Rolf...