Hi,
You can drag wav, aif and midi files from either a Windows explorer or the Podium browser, and drop the files onto tracks. Last night I uploaded a YouTube video that shows how this is done:
http://www.youtube.com/watch?v=fCVMZzRIjcw
Note that this uses the upcoming Podium 2.27, so there are some things that are different. One new thing is that you can drop the files below the last track header. Before you had to drop them on the timeline area.
Frits