1. Copy the archives into the same root folder

2. Download and run the Seascape Archive Updater according to instructions in this article: http://lc.swingsoftware.com/seascape-for-notes/3-how-to/how-to-update-seascape-web-viewer

After the Seascape Archive Updater finishes running it will both update the Full Archives to the latest version and generate a new database catalog which features all of the archives that you copied into the root folder.