can anyone tell me how to stop my homemade wedges from sticking to the bottom of the oven tray? I coat them in oil, also I have tried pre-heating the tray, nothing seems to make any difference!!

also, how can I make potato fritters, like you buy at a takeaway??

You could try baking paper,for wedges, I put potate wedges in a bread bag with a little chillie powder, or cajan mix, then a little oil mix about in the bag to coat then tip on to baking paper, do keep them moving every so often.
A potatoe fritter recipe consistancy is very gluggy otherwise they will be like piklets,flavour can be varied to suit.Grated potato blotted with an old teatowel to get some of the starch out, then into a bowl with self raising flour,salt pepper, I'd put plenty of curry powder in, milk to mix just to a thick mix. Cook two or three at a time no over crowding. have hot plate with paper towel to drain excess oil, keep warm till ready to serve.

Nick007, I've come to love baking paper! It really stops things sticking to the oven tray -- also, use olive oil spray for your potato wedges. The combination of baking paper and the spray turns out quickly-cooked, crisp but not greasy wedges.