SWTOR works.
You do not need to download an old version. If the launcher is hanging for you (i.e. freezing at launch time before the launcher window appears) the issue is incompatibility with some software you have running on your PC (when used with Inner Space+SWTOR). Sure, it MAY temporarily work around the issue for you to use a version of Inner Space from the Archives, but that is absolutely not necessary and will not contribute to actually solving the issue.
So with that said, if you have this issue launching SWTOR, please provide Compatibility Diagnostics from ISBoxer's Help menu.
http://isboxer.com/wiki/DiagnosticsIt may be worth noting that on my system, I had to shut down Razer Synapse for SWTOR to work -- this issue does not occur with Razer Synapse loaded and launching other games, just SWTOR, and yes it is supported for you to use Razer Synapse...
For me to fix the problem you are having on your system, I
must know what software is causing the issue for you in order to even work on it. Compatibility Diagnostics please!