'English - United States' is the only supported language. The module will only download the en-US versions of the Visual C++ Redistributables
Get-VcList will attempt to match the VcRedist version in the manifest to the
ProductVersion property on the downloaded file. Because Product Version on the 2005 and 2008 VcRedist installers doesn't match the installed VcRedist, the file will be re-downloaded even though the installer is the correct version
Visual C++ Redistributable 2012 Update 5 is available. This update is available on the Visual Studio download site, but requires a login to download. The Visual Studio public downloads page still offers Update 4, so that is the version provided by VcRedist
Visual C++ Redistributable 2008 9.0.30729.7523 is available; however, only as a private hotfix and not publically downloadable from Microsoft.