I would suggest the Jevents team to change the licence to commercial since the only free thing in this component is the download. You have to deal with many many settings that are not documented in their site unless you pay them. I tried it and had many problems and also found many bugs, so my only option to se whether the component and the modules are working or not was to pay them for a simple answer that ought to be documented elsewhere. Completely useless in my opinion
Did you try asking in the JEvents 1.5 forum? Most questions there are answered quickly.