Sorry, been taking some time off, haven't seen this until now. Surprised British Red hasn't shown up, he's the real wine maker... I'm just a brewer, but I can get by.
This is my basic Elderflower wine:
About 1 pint (half a jug, not pressed down) elderflowers, washed and de-stalked
1kg sugar
375 Raisins
Juice of 1 lemon
Chuck in a bucket (preferably lined with clean muslin), and add 1 gallon of boiling water, and allow to cool overnight. Strain and add one teaspoon of Pectolase, if you've got it. It's not absolutely necessary... Chuck in one packet of white wine yeast. Some will say you should rehydrate the yeast first, or start it off in either orange juice or some of the "must" (the liquid you're going to ferment into wine) and it's probably a good idea - but you can get away with just chucking it in the bucket.
Leave to ferment in the bucket for a week or so, and then rack it into a demijohn and fit an airlock. Leave to ferment (ideally around 18 degrees) for another month or so. Then rack it again into another demijohn, and ideally add some wine stabiliser. Shake up that demijohn several times a day for a few days to get as much of the dissolved CO2 out as possible, then add finings (or simply wait for a few months, rack, wait, rack...) Let it clear for a few days, then rack it again. If you want to put a real polish on it, run it through a Vinbrite wine filter. Now you're ready to bottle.
Usual homebrew rules apply - keep everything scrupulously clean, and sanitise everything that's going to come into contact with the wine - VWP, Milton Fluid, dilute plain bleach, or Sodium Metabisulphide will all do the job. Rinse any chlorine-based sanitisers thoroughly. I use VWP for all my homebrew sanitisation, and rinse at least 3 times.