[Ramses]

Hi Forum!
I've got an Octane Dual 250 from an old job and I'm trying to acquire/install/run all the 3d programs I wasn't able to back in the great old 1990's

I can't seem to get Blender 2.49a properly installed.  I can unzip and de-tar it, but double-clicking what appears to be its application icon does nothing.  I'm sure I've missed steps since I only used SGIs a bit in college, but never had to admin one.  I'm probably in way over my head...
Google and Youtube don't really have any "Install downloaded programs in IRIX" tutorials.

Should I have been logged in as root to do this? 
Am I supposed to do something with the "inst" command now? (swpkg didn't work)

Thanks for any help, I"m sure all this is old hat to you guys.
Ramses