Here in ClieSource.com (under the "Skins" section to the left) and at PocketPhile.com
One word of caution. The new 2.x version of ZLauncher CAN NOT use earlier themes. So when you download a new theme (also known as a "skin") make sure it says it is 2.0 or above compatible or else it just won't work. Then visit http://www.LaunchPlug.com/Tips_ZL.html for the steps to use the Theme Manager.
Pocketphile seems to be down. Bummer. I'll try some of the other sites you link on Launchplug.
BTW, I've been reading Launchplug.com for quite a while (stumbled upon it when I was trying to get my memplug to work with a Visor Platinum). Anyhow, the info has been quite helpful. Thanks.
Got Zlauncher And Now? Where R The Themes? 
Linear Mode
