I am using Eclipse to build a small Java project. I am wanting to include in my Java documentation the project overview, this is so that the index page contains information about the project title, its purpose etc.

I know that I can include an ovwerview.html page in my project and have done.

As per the Java Documentation, I have also read that I need to use an -overview option to activate the merging of my overview.html into the index page for the Java Doc:

If so, you should be able to manually select it and then generate the javadoc. If not, consider updating your JavaDoc plugin for Eclipse, if possible.