(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?
(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.
You need to make the Milestone Task a LOE and hook up to all the predecessor tasks with both a FS and a FF, then format the LOE Tasks to show only a Milestone.
If you want to show other LOE tasks as a LOE then you will need to create a Activity Code for normal and milestone LOE tasks and a bar style for both and apply the filter to the two LOE bar styles in the Bars form.
Regards
Paul E Harris
www.eh.com.au