All the Spacial products share the same forum, but there's different subforums for the products. SAM Broadcaster as the most popular product has several subforums, while the other products have merely one forum.
Also you can't move topics around at all.
This is the SAM Cast area: viewforum.php?f=14
These are the SAM BROADcastER areas: viewforum.php?f=20
This is the SAM DJ area: viewforum.php?f=12
And this is the area for all the other software products by Spacial (most of which are now discontinued): viewforum.php?f=13