You should be using 60/40 Rosin Core solder.
If you see copper that's the trace you need to solder to. Depending on what it looks like will tell you if you've scraped off enough masking. Use several LIGHT scrapes until you get enough of the masking off and can make a good solder joint.
If it's dull almost orange looking then there's most likely still a thin layer of masking still on it.
If it's bright and shiny then STOP, you've removed enough and any more scraping and you could end up scraping it completely off the board. Then you'll have to make 2 correct scrapes on that line somewhere in order to solder a "jumper" wire over the open you made. If it IS shiny and you're using the correct solder and you're not getting the solder to stick, then you need some practice.
Practice on something you don't care about ruining to see how much scraping it takes to get the trace exposed and soldered to correctly. All boards aren't exactly the same, but it will give you a better "feel" for doing it on something that can be messed up on and not worried about, and you'll be better prepared to work on something important, like a $50 controller, after you've made a few good scrape/solder joints on a crap board.
QUOTE("lmastercheifl")
And would it work if I used something else to get them to stay on the points?
No, solder them on. Tape or glue will sooner or later come undone, and it makes for a lousy connection in the first place. The main reason for soldering is to make a good electrical connection between the 2 pieces, the fact it holds really good as well is just a great bonus.
This post has been edited by RDC: May 21 2006, 05:19 AM