There is a short interview with Gigi Edgley at the very end of the official Henson company podcast #68 taped at the official Farscape con in LA.
You can listen to it here. Gigi's part starts around 00:21. They interview some fans at first, then talk with Gigi and finally have few words from Brian Henson himself. It's worth checking out.
If you want to save the interview in an mp3 format, here is a direct link for you.