I installed the plugin on 1.8.7, and inserted the code but a tag cloud does not appear.

I put the code in the side bar, just above the calendar: www.moralquotes.com

It was mentioned that it won't appear on a single post, but for me it doesn't appear even on the index page.

BTW, I have setup so that Blog A is the default. Does this make a difference?

Admin menu says it's installed.

What else do I need to activate?

I see the "Plug in variables" portion. The default priority is 50 and the "Apply rendering" was set to "never". I changed this to always, stealth....and nothing changed (What do these do BTW?)

Is there another menu where it needs to be activated?

Thanks for your help.