WindowBlinds 6 Update/Install fails

In using SD Central, I see that WB 6 is available for installation. When I attempt to install this version over 5.51 it fails. Below is the output in the installation log file. -- [Application] ----------------------------------------------------
Name: Stardock Central
Path: D:\Program Files\Stardock\SDCentral
Version: 2.40.437, build: 141

-- [System Information] ---------------------------------------------
Platform: Microsoft Windows Windows XP, 5.1.2600 Service Pack 2
Display: ALL-IN-WONDER 9600 SERIES
Driver Version: 8.231.0.0
System Dir: C:\WINDOWS\system32
Time / Date: 18:48:17 -- Tuesday, October 30, 2007

-- [Installing] -----------------------------------------------------
Server: http://sdc1.stardock.com
Server Dir: public
Network Id: odnt
Name: WindowBlinds 6
App Id: wb6
Installed: True
Version: 6.00.005
Type: production
Reg Key: WindowBlinds
Install Dir: D:\PROGRA~1\Stardock\WINCUS~1\WINDOW~1
Exe: wbconfig.exe
Last Updated: 10/04/2007

-- [Account] --------------------------------------------------------
First Name: Chris
Last Name: *removed for posting*
Email: *removed for posting*

-- [Installation] ---------------------------------------------------
Download: D:\Program Files\Stardock\SDCentral\data\public\wb6\production\wb6.xml 0 | Attempt: 1 | -14 The Url is invalid
Download: D:\Program Files\Stardock\SDCentral\data\public\wb6\production\wb6.xml 0 | Attempt: 2 | -14 The Url is invalid
Download: D:\Program Files\Stardock\SDCentral\data\public\wb6\production\wb6.xml 0 | Attempt: 3 | -14 The Url is invalid
Server: Using other server http://sdc2.stardock.com
Download: D:\Program Files\Stardock\SDCentral\data\public\wb6\production\wb6.xml 0 | Attempt: 1 | -14 The Url is invalid
Download: D:\Program Files\Stardock\SDCentral\data\public\wb6\production\wb6.xml 0 | Attempt: 2 | -14 The Url is invalid
Download: D:\Program Files\Stardock\SDCentral\data\public\wb6\production\wb6.xml 0 | Attempt: 3 | -14 The Url is invalid
Result: Installation failed (12)

---