If not the Liszt, there are (to my knowledge) not that many to choose from.
Perhaps it was this one?http://www.youtube.com/watch?v=CDAF_-yhCbg
(that's me and it's my paraphrase..)
Most likely by far would be Thalberg's paraphrase, of which there are a few recordings/performances on Youtube. (I'm actually rather fond of his version and think it's superior to the Liszt, which I find a little overblown - and exceptionally difficult). A lot of the usual 19th century suspects who wrote copious fantasies (i.e. Herz, Czerny, Pixis, Prudent, von Henselt, etc) don't seem to have touched this opera. There is a fantasy by Ignace Leybach and Google suggests a recording exists in piano roll format.