Hi mickyblu82,
We’re working on Go2wpForo tool to add this feature, however this may take another month. At the moment you should ask some service like gConverter or ProfProjects. This is not an easy task, this is not just exporting database and importing to another database. All difficulties are related to User, Topic, Posts ID relations. IDs are unique and there is no way to import data with the same IDs because the target database IDs are already in use. This is a data conversion task with new ID generation and connection.
In case the target WordPress and wpForo is just installed and the database is a fresh you can export all tables with _wpforo_ secondary prefix and import to the target website database. Make sure the primary table prefix is the same (wp_)
After this export wp_users and wp_usermeta table and replace with target wordpress database tables. The admin will be change and you should use the soruce/old website admin login details.