webstyle 4 frontpage addin problem

Hi Frontpage has lost the add in for webstyle 4. I have several websites with menus made with webstyle 4. Now I can't update them as frontpage has lost the add in . I have tried uninstall and re install to solve the problem and that didn't work. I have also tried to install webstyle 4 on my other conputer and it just hangs up on the "confirguring the new software intallation" it has been hung up on this for almost an hour. I used to be able to download it from xara website but it isn't there anymore. Could you please help me. I have purchased Web Designer 6 and am working with it but need to get my menus from webstyle 4. Not sure why this wasnt included in web designer but am getting really frustrated here. I have several menus to update and need to find out what the problem is.
Coule you drop me an email when there is an answer" I really appreciate it.
Thanks
Sandra Woods