I don't know a lot about these stingless bees yet but I'll attempt to answer your questions. I'll have more details after the workshop in November.
They will forage on anything that will supply them with pollen, nectar or resin so I assume they will pollinate most plants too, native and exotic. I do know that they pollinate macadamia much better than the european bee.
The bees pretty much just look after themselves as long as you position them out of extreme weather. Just like people, they like shade from the heat and some morning sunshine to get them out of bed. A hive can only be moved very short distances or very large distances (less than 1m or greater than 1km) or the bees get lost by returning to the old position.
There are several suppliers of hives in logs and boxes. They each charge around $200 for a box hive with a 12 month guarantee.
They are only 4mm long, so very hard to photograph with my old 2MP camera. It will be some time before I can get photos of inside my hive, they are still busy sealing it up after the split several days ago. If you want to see some great pics, including some of the brood inside and queens, take a look at the gallery here http://www.australiannativebees.com/