Lowe's sundews are usually Drosera capensis (longish flat leaves, last 3rd has tentacles), Drosera adelae (long pointy leaves) or Drosera spatulata (spoon shaped leaves). These are all sub-tropical species and you should be able to grow them outdoors at least part of the year or on a bright sunny windowsill almost anywhere in the 48 contiguous states. Drosera spatulata has temperate forms and may need/go dormant.
To answer #1:
a. Make sure it has plenty of water. Use rainwater or water that has been purified by distillation or reverse osmosis with not salt or other minerals added. Your local tap water maybe ok, but unless you know for sure stick with the above. Put the pot in a small tray, deep dish or other container filled with at least a quarter inch of water.
b. Make sure the plant gets at least 3-4 hours of direct full sunlight a day.
Given a & b and the plant is not dormant it should produce dew that does not dry out in the sun.
Depending on what shape the plant is in when you got it, it should start producing dew in a few days. If the plant was dried out or light starved when you got it, it may not produce dew on any of the existing leaves and you have to wait for the next set of new leaves to open this might take a week or two or more. Sometimes it takes a few days for new leaves to produce dew too.
#2
Once the leaves are nice and dewy flightless fruit flies should get trapped easily. Crickets, except for the smallest you can buy, maybe too big or strong to get trapped. You could try putting them in the freezer for a few minutes to slow them down, not kill them, and put a cricket on the a leaf with some tweezers, working it into the dew gently.
You might need to give the plant a little kick start by fertilizing with a small amount of powdered freeze dried blood worms. The same store where you bought your crickets or fruit flies should have the blood worms typically as food for bettas. Take a tiny pinch and crush it finely. Sprinkle the powder onto the plant then mist ever so lightly with a spray bottle.
If the plant is outdoors, it will probably feed itself.
See this
thread.