Yea I read RC Cars solding hint and it helped me a lot! I got a Weller 40 watt solder station for $50 bucks its the best thing I've bought in RC!, lol I used Radio Shack 60/40 1/64" solder (really fine) that alone should make a HUGE difference! Like they said above let the heat do the work heat the wire first the melt the solder onto the wire. Then melt some onto what you connecting the wire to place the Solder Iron in the middle of the 2 and wait for it to melt the solder on the top and bottom (about 1-3 seconds max). and stick the two together if the joint drys a shiny silver look its a good conducting joint if its all dull and brownish you need to redo it. Dont forgot to check the joint by pulling and raping it around it shouldn't break under pretty sever conditions...
Hope this helps
Later
Jake