Iggy64 - 2012-12-07

Am a fairly new Linux user (6 months).  Running Ubuntu 12.04 on an old laptop.  Using LXDE lightweight DE.  Got interested in trying Afterstep.  Installed it from Ubuntu Software Center.  It does not show up in the Ubuntu Sessions Menu, so I don't know how to start it. 

How can I tell if I have installed it properly?  What is the best way to install it?  How can I add it to the sessions menu?  Or is it not launched from the menu?