Recently active topics in PBwiki tagged with podcasts

I've been trying to load several podcasts from gcast into one of the pages in my wiki. I can put the first one in just fine. I go to Edit in Click and Point Mode. Then I click on Insert Plugin. Then I click on PBwiki magic and then HTML. Then I insert the HTML for the podcast. That works fine. The problem is that when I go to insert a second one in the same way, the first podcast converts into the second one. Do you have any idea why that might be and what I can do so that I could have two or even three or four different podcasts on one page? Is that possible?
Thanks,
Becky