As far as I am aware, the holding tanks will appear in the Poker Lobby at midday today.
They should be under Tables > Multi Tourney > All
DTD specific tournaments also appear under "specials" tab, which may be easier for finding them, but until they appear, I can"t say for definite.
I was planning on being around at midday to ensure there are no problems, but I might just take the dog s for a very long walk into the New Forest where there"s no phone reception.