The Halloween Seduction mix 2 is the Dee Trippa studio mix, this tape was given out on the night to those in fancy dress, it was lucky dip which tape you received.
I have two double packs from this event Vol 1 Andy C and Randall Vol 2 Ed Rush and Optical They both mention on the inlays both of those releases no mention of any others so I would think the others weren't released unfortunately.