That looks like a great app. I don't have "install" permissions. I am checking with our host to see if they will install the server side code.
They are probably going to tell me that we would have to go to a full hosting program. Then I would be responsible for ALL upgrades and maintenance. NO WAY !
This forum a fun thing for me. If I had to do all the maintenance, it would feel too much like work (Literally, I am a systems admin in real life).
Don't get your hopes up.

But sometimes this company goes out of their way to help out. I will let you know what they say.