I just tested and I can't reproduce this.
Here's what I did:
* Installed a clean F14 x86-64 GNOME VM
* Ran Firefox, Googled 'moomex', went to the resulting site (
http://gnome-look.org/content/show.p...?content=57063 )
* Clicked the top 'Download' button of the two
* Saved the offered file (a .tar.gz) to the Downloads folder
* Ran System / Preferences / Appearance
* Clicked the Install... button on the Theme tab
* Selected the downloaded .tar.gz button
* Activated the Moomex theme by clicking on it
* Clicked Places/Home and my home folder popped up; Places/ Desktop and the Desktop folder popped up, and so on