No, unless they contact you further I wouldn't list them as a participant.
I think they are interested in your swap or they wouldn't have subscribed to it. So you may be hearing from them soon. Perhaps they want to finish up some other swaps before they sign up for more.
Lorien <--My Blog
Giggle Mingler (Hee hee)
"A raω onion ωould pгοbably be rubbеd on unbroken сhildbrainѕ with гeрutablе gaіns." - Comment from a Blog Spammer as Read by me