Are you still having problems with this? applying
corrections/explanations to my botched instructions you should be able
to get is going properly. If I understood right, it would be like the
following (let's say the name of your user account is will, but change
to your actual user name):

1) open /home/will in your file manager and copy the tar.bz you
downloaded into it
2) navigate to that directory in your terminal (cd /home/will)
3) run the unpack command described in the instructions. This should
create a folder called pandodl.
4) type "export PANDO_HOME=/home/will/pandodl"
5) then run the command to launch pando.

after doing that, do you still get error messages?