Yet at the same time, if I enter into the navigation bar C:\Java\tomcat\webapps\ROOT\SomeDirectory\hello.html, THAT shows up correctly!
Plus, once I'm at the main Tomcat page, nothing that isn't already online works. For instance, if I go to the left menu and click anything there besides "Tomcat Online"-- for example, Administration->Status, I get an error message:
"HTTP Status 404 - /manager/status
type Status report
description The requested resource (/manager/status) is not available.
What's going on? The directory for that CAN'T be wrong, can it?
Did you check the tomcat admin page to ensure the application has been loaded ? Copying directories into tomcat will not deploy applications automatically. You need a .war file that is deployed under the folder 'webapps' or an equivalent folder.
To clarify what I said earlier, tomcat cannot be treated like the root folder that say apache would scan to serve HTML content. Unless the folder is structured to be recognized as a web-deployment, tomcat will not recognize it.