Do I need to uninstall and reinstall the plugin from 2.6.3 to a newer version for it to function properly with the new component release? I do not see an option for the plugin install under My orders.
I cannot get events to display, let alone show the registration and details button. All that will display is what was there before I did the upgrade.
Yes, read the readme file in the package and you'll see this. Coming from 2.6 to 2.7, you need to update EVERYTHING... all plugins, module, profile plugins... anything you use. It all will NOT work in 2.7 unless you update them. All of the updated items are included in the package and detailed in the readme file.
If you don't see your events, check and make sure your categories are published.