A Xara Server Connection Problem:  'Webstyle encountered an error while communicating with the server. Unexpected error (0x800A151C)'  can be displayed when attempting to unlock or download templates from Xara Webstyle.

Please select start and then run from your Windows start bar and type regedit.
Navigate to HKEY_CURRENT_USER\software\xara\xmupload
Is the folder present? If not, please download xmupload.zip from here 

Extract the .reg file from the zip to a location on your machine. Next right click on the file and select merge.

Start Webstyle and attempt connecting again