I'm in the same situation - bought a used Santana earlier this year, but my wife was pregnant at the time, so we couldn't use it. Now the winter weather has arrived here in Indy, so we won't be able to take it out for our first ride until spring!
I'm also curious as to what trainer can accept the tandem. I thought about doing that for fun, but the 160 rear wheel on the Santana won't fit into the 1UP trainer I have...