I've only been playing Minecraft for a few weeks. I just installed IC2 and I've run into two problems. First, copper and tin seem to be completely absent from the game. I've completely mined out layers 40-42 on one chunk and layers 12-15 on several chunks (which, as it turns out, is a good way to make an unintentional slime farm...The things people don't tell you when they're giving the newbies advice) and have found neither of these ores. I've found just about everything else, including a little lead and some uranium, but no copper or tin.
The second problem I'm having is that I seem to be unable to make an iron furnace. I've tried both recipes from the wiki, but neither works.
So far everything else seems to work. I have rubber trees and can get resin from them with a tap and I have a couple fields of crops. Can someone point me the right direction to get the copper and tin fixed at least? I can live without the iron furnace if I have to, but I need the copper.