for torches use IC2 resin, from rubber trees... resin + stick = 4 tourches but in an assembler(LV or higher) it's 6 torches, so it's a great source for lighting, and since you need resin collected for rubber anyhow
Yes, the recycler does produce normal IC2 scrap, dunno if it was added in NEI what gives scrap, but I know that using plank, from wood, gives scrap enough to finish that quest.
Sulfur is found in the Nether, in sulfur(sphalerite and such) veins but it's also quite prevalent deep in overworld mining, in those small ore blocks. But the best source is probably from refining certain ores, like pyrite which is 50% iron 50% sulfur, but most of the processing steps require a good amount of machines for that... it's one of the reasons that make using the redstone cables to make early circuits a viable option since it doesn't require rubber to insulate.
Personally I mined for my own sulfur vein in the nether, I went below Lava lake level and found redstone, sulfur and some other nice goodies... Nether mining is safe-ish if you are careful about how you dig, since lava flows out so quickly.