Following the instructions "to the letter" for the 1.5 Beta release, I seemed to get a successful installation in Joomla 1.5.9 but when trying to add it to a menu it doesn't work. I keep getting a 404: Component Not Found error. Sounds like an issue I can take to the forum, right? Wrong! The forum has zero support and is locked to new posts.
This component is not documented or supported in any acceptable way, and unless you have a few days to fugure it out I suggest you stay away. Far away.
You must be trying the wrong forum - the jevents 1.5 forum (http://www.jevents.net/forum/viewforum.php?f=17) is not locked and is very active.