I'm sorry but we don't follow you well. Please let us know what you want to show the data array of the topic or the fully designed topic? If you mean topic array, then you should use the following code:
<?php wpforo_topic($topicid) ?>
In case you want to say thank you !)
We'd really appreciate and be thankful if you leave a good review on plugin page. This is the best way to say thank you to this project and support team.