The currently available version of vmg for GNU/Linux is a 32-bit binary. I've recompiled vmg 3.7.1 as a 64-bit binary, added it to the 32-bit archive, and kludged the install.sh script to detect which one needs to be copied.
While it'd be much more trustworthy if the authors recompiled the binary for themselves, if they prefer, they are free to use this file as the latest compiled version for GNU/Linux.
By the way, I did not recompile the 32-bit binary, so that is still version 3.5.
Here is a better version which includes fixes for bugs #79 and #80 (install to /usr/local and include a proper .desktop file).