Can't add skins to the WindowBlinds list

I recently built a new WinXP box and am now trying to get Windowblinds v5 to run.  I start it using Stardock Central, and it appears to launch OK.  But when I try to scroll through the list to get to the Copperdeck2 skin, it doesn't show up in the list!  I've confirmed that it's in Program Files\Windowblinds\CopperDeck2wb5\ folder.  I've even tried downloading it to WB, the program then claims a new skin has been installed, but it names it "" and doesn't add it to the list.  I even updated WB5 with the latest beta to see if that fixed the problem -- but it still won't display the skin in the list. Now what?