Try these:
http://hce.halomaps.org/index.cfm?fid=3656 http://hce.halomaps.org/index.cfm?fid=1525 I would try to give some instruction on it myself but I do not have the time. But as a future reference, I would suggest searching the tutorials section before asking how do something, there is a decent selection covering a variety of different topics like this and you may get the information you need faster than you would on the forums.
http://hce.halomaps.org/index.cfm?pg=1&sid=23 However, I am aware that they don't have tutorials for everything, I am simply suggesting to look there first, and if still haven't found what you need then fake a forum post. You don't have to do it this way, that's just how I prefer to do things.