Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

Actually its not really a help. Its more of a "how do I do it" thing.
No clue where to begin!
I use Citadel Colors.

Assuming you're talking about using non-metallic paints to paint metallic objects as an effect, the only advice I have comes at the end of this article.

http://en.wikipedia.org/wiki/Figure_painting_(hobby)

Look at the last entry in the index.

Coolminiornot.com has a ton of articles on the subject ranging from beginner to advanced, including (if I remember right) everything from color theory to Sky-Earth NMM techniques. A couple are kind of wonky, but many of them are very informative. That's where I picked up my first tips and tricks. After you learn the basic techniques, then its time to experiment!