Engineer's Toolset has been tested on the following OS:
Operating System (32-bit or 64-bit)
Windows Vista (IPv4 mode only), Windows XP SP2 or later, Windows 2000 SP4 or later, Windows 2003 SP1 and R2, .Net Framework Version 2.0 or later.
It is not supported on Windows 2008 yet.
I would recommend you to install it only on OS that have been tested by QA to avoid such issues.
During the installation did you select to install the program for all users? or only my user?
This could be the problem.
Actually - that is an old spec (which I will get fixed), the Toolset has been testeds and does support Windows 2008. Can you contact support so we can get a look at why your license cannot be seen on the other profile.