Pygmy Drosera? Neat. Never saw those in a ready to buy bog before.
If it looked like rust then maybe it was rust.
Stiff sarracenia is a good thing ^_^
If the rhizomes are healthy, I'd spray lightly with fungicide and place in new medium. If they have rotting parts, cut off the rotten part and part of the healthy part just before the rotten part. Treat with a fungicide. Plant in sterile medium (Microwave it. Make sure it's wet first!). If you want, you can water with superthrive to encourage new root production. Keep the crown above the medium. Cut off any dead lives and spray the green leaves with fungicide, too. Put them in full sun and in a shallow tray of water.
After that and after they are back to normal, you really don't do much. Pull an occasional weed, and keep the tray up. If you want to see good pics of Sarracenia in their natural habitat, look at the S. oreophilla sticky at the top. As you can see, all they need is a constant water supply and as much sun as you can provide. Always use the purest water you can and get some experience under your belt before you start experimenting with artificial fertilizers.
If you ever see signs of pests/disease, cut off the affected area and spray with fungicide. Don't use fungicide just for the heck of it, though, as that can help promote fungicide-resistant strains of fungi. Similar in a way that abuse of antibiotics and lead to resistant strains of bacteria.
Ok, hope I covered it all. Remember that sometimes a plant is just beyond repair, and sometimes it's time to throw it away. We can't really know the full extent of your situation without some pictures, but hopefully my little mini guide will help a little.