You need not to Install Management tools with CF 10 however this might not be the issue here.
If it is not a production then set the log level to debug in the isapi_redirect.properties file present in the cfroot\config\wsconfig\1\ directory. However, before doing so rename the isapi_redirect.log in the same location as isapi_redirect.log_old so that there will be new enteries in isapi_redirect.log when you access your website.