It seems the newest version is 873 and the previous is now 871. I believe there was an 872 and I am wondering why it was seemingly ditched.
same for 868-870. what happends in between? this question also never been answered by ib looks like they lost in their own backyard i upload 872.6 to rapidshare, cause few people are looking for it. here is the link- http://rapidshare.com/files/37156161/tws40_install.exe