Can't help with hamachi but, as to reply to your other questions.
Create a shortcut to HTLauncher and go to properties and add this to the end of it -v3goodluck (This is only good if you your htlauncher has this code in it. Be sure to use a hex editor and search for -v3goodluck. If it does not find it then this will not work for you.)
Cannot open file version is because it is not able to connect to your site to download it. Make sure you are using Autopatch v2 to create your patch for your website.(Sometimes this may require you use another pc besides the one you are using for your server to create the patch files.) Recommendation - use no-ip.com DUC Client for your website if you don't have a static ip address and make sure that port 80 is opened for your website in your firewall for both your computer and your router(only if you are using one). Using the DMZ settings of your router allow you to open all ports for your pc but, this does NOT guarantee that your ISP is allowing the connection.
Also on another note make sure that your firewall allows exceptions for both SSTantra.exe and your HTLauncher on your pc you are trying to run it on.






