I am trying to get the Silicon or Perfection theme to display in plasma but when I try and set it I always get the Air theme for some reason. Is there a way to fix this?

Well I got the themes to work but only by using the "Desktop Themes Details" in the System Settings utility. Fist I manually copied the themes to:

~/.kde/share/apps/desktoptheme/

Now they show up but if you try to use them by right clicking on the desktop and choosing desktop settings both themes show up with the Air preview for some reason... if you select them they will only apply the air theme.... this is strange and I tried a reinstall to see if it would fix it but it did not...

Where can I submit this bug?

KDE bugs can be reported at bugs.kde.org. Please ensure that your bug has not already been reported when you report it.